DarkLordOfOptics
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Alpha Class Long Range Scope Review, Part 2
November 18, 2022
Guest contributors: Glassaholic

Editor's Note: this really excellent comparison is entirely a brainchild of Bill, who goes by @Glassaholic here and on Sniper's Hide.  Bill is a good friend and I am honored that he allowed me to post this here with my comments where appropriate.  Aside from a couple of minor things that Bill identified after he sent me the document, the text is unchanged.  My comments are interspersed through the text as "Editor's Notes"

 

Tangent Theta 5-25x56, ZCO 5-27x56, Schmidt & Bender 3-27x56, Schmidt & Bender 5-25x56, Vortex Razor G3 6-36x56, March G2 5-40x56, March 4.5-28x52 and Burris XTR III 5.5-30x56 Reviewed

PART 1 is here: https://darklordofoptics.locals.com/post/3076448/alpha-class-long-range-scope-review-part-1

 

PART 2

 

OPTICAL QUALITY

I’m going to reiterate what I’ve written in past reviews as a reminder:  One of the most difficult areas to assess with any manufacturer is the quality of glass they use in a given scope model, or rather, how the image looks to the shooters eye when viewing the sight picture through the scope.  Traditionally when it comes to optics one generally “gets what they pay for” and hence the higher end optics tend to have the higher end prices; however, with new design technologies we have seen some scopes punch above their weight class.  It is impossible to take images through the scope to show the quality of the image to the shooters eye, this is because any image capturing device (e.g. camera) also has its own lens system which introduces its own optical aberrations and if the system is better aligned on one scope verses another it may throw off performance; therefore, you will not see any through the scope images because I do not want to skew opinion based on IQ of one image over another.  So, for this evaluation I took meticulous notes based on my naked eye observations under as best controlled conditions I could get outdoors.  Scopes were tested at multiple magnification points: 5x, 10x, 15x, 20x and 25x and a weighted average was obtained for the ratings below.  I would like to note that the March G2 5-40, the Schmidt 5-25 and the Burris XTR III 5.5-30 were all tested on a different day and different atmospherics can change results slightly.  Finally, I have separated out my evaluations on Pop and Edge to Edge sharpness with two separate criteria – close range using a test target and long range (> 500 yards), the reason being is that close range allows me to evaluate how well the scope can resolve a resolution target, contrast targets and color chart with as minimal effects from atmospherics while the long range testing gives more “real world” results – example, at close range edge to edge sharpness may look fairly poor when looking at letters, numbers and lines, at distance this effect may be diminished or appear less intrusive.

Optical Assessment criteria (rating lower numbers are worse and higher numbers are best):

Pop (Combination of Color, Contrast and Clarity) on resolution chart

Pop is the ability for the image to really stand out and come alive.  This is the overall impression your brain receives when first looking through the scope for given magnifications, keep in mind that some scopes have a better “sweet spot” than others, this sweet spot or the Goldilocks zone is where a scope performs best within its magnification range.  A detailed chart is attached

Pop (Combination of Color, Contrast and Clarity) at distance >500y

How well does the overall image look when viewing objects at distance.

Contrast (High)

My high contrast target has very bright white paper with very black lines, the numbers represent the smallest value I was able to discern. 

Contrast (Low)

My low contrast target has a gray background with darker gray lines, the numbers represent the smallest value I was able to discern. 

Chromatic Aberration (CA) Center

A hotly debated topic – CA, which is typically seen at the edges between high and low contrast objects in what is termed as fringing and usually comes in a band of color along the green/yellow and magenta/purple spectrum, some are greatly annoyed by this optical anomaly while others insist they cannot see it, one thing to know is it has little to do with your ability to hit a target, but can affect the clarity of the target (especially in lower light situations).  I tested for both center CA and edge CA.  One other area is CA sensitivity with lateral movement off the center of the scope, you can quickly induce CA in these situations which are often rectified by proper cheekweld/eye placement behind the center of the scope. 

Chromatic Aberration (CA) Periphery/Edge

Many scopes may have really good performance in the center of the image, but quickly fall apart as you move toward the edge of the image.

Color Accuracy

If you’ve ever heard the term “it’s all in the eye of the beholder” that in large part describes the experience of color for each of us.  It seems our eyes have different sensitivity to different parts of the spectrum and while I tend to prefer “warmer” images and am somewhat put off by “cooler” ones, others see colors differently.  For some reason, most Japanese manufactured optics tend to be on the cooler side while many European optics tend to be more neutral to warm.  For this reason I have always gravitated towards European optics; however, I am happy to say that March optics in general (not just this scope) have a color contrast that is much more in alignment with their European counterparts; likewise, the Vortex G3 had a neutral to slightly warm look that I like.  There are quite a few new scopes introduced this year from Japan and I’m hoping the Vortex represents a growing trend of neutral to warm glass.

Resolution (Center)

This is different from my line resolution testing, this is how “sharp” the image appears, I’m looking for details and the scopes ability to resolve those details.

Resolution (Edge)

Same thing as center resolution but now I’m focusing my eye at the extreme edge of the sight picture and determining if there is any image degradation that occurs toward the edges.  A scope can have very sharp center resolution but poor edge sharpness and it will give the user the impression that the overall quality is not very good.

Resolution (Edge)  at distance >500y

I added in this test because I was beginning to notice that some scopes did not perform so well in the close testing but seemed to do better at distance, maybe it’s because I’m not using the edge of the scope as my POA but instead using it to pick up my target within the FOV, I still prefer a scope that has superb edge to edge sharpness, but found that some scopes did not bother me as much as I thought they would at distance.

Resolution (at max. Elevation)

I set all scopes to 15x and dialed the elevation until it stopped at the top of the travel.  This represents using your scope to the very limits of its usable travel.  Obviously, some scopes have greater travel than others so keep that in mind.  I also did not re-adjust parallax as I feel this is yet another area that takes time which could cause you to miss your game or lose time during competition, the idea here being “dial and shoot”, not “dial, fiddle, shoot”.  You may disagree with my reasoning which is why I wanted to clarify my process. 

Eyebox Forgiveness

I have seen varied definitions of eyebox in the community, so to be clear, here is my definition which will help you understand what I am looking for – put simply, eyebox is the ability to be able to quickly obtain a clear sight picture when getting behind a scope.  Yes, there is some relationship with exit pupil and eye relief, but there is more than that going on that allows a scope to have a forgiving eyebox.  One thing to note with all these scopes, as magnification increases so does the finickyness of the eyebox.

Depth of Field (DOF) Forgiveness

DOF forgiveness is the ability to have both near objects as well as far away objects appear “in focus” in your sight picture.  An example would be to set your parallax at 500 yards and you notice that both an object at 200 yards as well as one at 1000 yards look relatively in focus.  Something to keep in mind is that some scopes may have perfect focus but parallax is off and vice versa, if this happens to you try fine tuning your diopter a bit more, if still wonky send it back to the manufacturer and ask them to calibrate.

Parallax Forgiveness

Similar to DOF forgiveness, you set your parallax at 500 yards and notice a target at 200 yards is parallax free, and a target at 1000 yards is also parallax free. 

Focus Forgiveness

How much, or rather how little, do you have to play with the parallax dial in order to get an object in focus as you change magnification.

Mirage (effect)

This is another one of those terms that requires a definition.  Mirage occurs because light bends to move through warmer, less dense air, this “bending” of light is the effect we see when our target appears to dance or wobble in the distance, we know the target is stationary but as the heat waves rise from the ground, the light is bent and gives the perception that the image is distorted.  What I am looking for here is the ability of the scope to tame or limit the effect of mirage, within the community this is often referred to as “cutting through mirage” and some scopes handle this situation better than others.  Keep in mind that my results were based on what I saw on the particular day I was testing; however, different atmospheric conditions can either decrease or increase the effect of mirage by quite a large margin.

Optical quality Test Results (higher numbers are better)

Close Range

ZCO

5-27x56

Vortex G3

6-36x56

Tangent

5-25x56

March

4.5-28x52

March G2

5-40x56*

S&B

3-27x56

S&B

5-25x56*

Burris

5.5-30x56*

 

 

 

 

 

 

 

 

 

 

Test Criteria

Average of 5x, 10x, 15x, 25x

 

 

Pop

(Color, Contrast,

Clarity)

9.8

9.8

9.6

9.6

7.6

9.4

9.6

8.2

 

 

Contrast Chart

(High)

8.8

8.6

8.8

8.2

7.6

7.8

7.8

6.8

 

 

Contrast Chart

(Low)

8.6

8.6

8.6

7.6

7.2

7.6

7.4

6.8

 

 

CA/Hue (Center)

10

9.4

10

9.4

8

9.2

9.4

6.6

 

 

CA/Hue

(Periphery/Edge)

9

7.8

8.8

8.2

4.8

6.2

9.4

6

 

 

Color Accuracy

9.8

9.8

9.6

9.6

8.4

9.6

9.4

8

 

 

Resolution (Center)

10

10

9.8

9.8

8.8

9.8

9.8

9.4

 

 

Resolution

(Periphery/Edge)

9.2

7.4

9.2

6.6

5.4

5.4

8.6

6.2

 

 

Resolution

(Extreme Elevation)

8.4

8.8

9.6

8.6

6.4

7.8

9.2

5.6

 

 

TOTAL

83.6

80.2

84

77.6

64.2

72.8

80.6

63.6

 

 

At Distance >

500 yards

ZCO

5-27x56

Vortex G3

6-36x56

Tangent

5-25x56

March

4.5-28x52

March G2

5-40x56*

S&B

3-27x56

S&B

5-25x56*

Burris

5.5-30x56*

 

 

 

 

 

 

 

 

 

 

Test Criteria

Average of 5x, 10x, 15x, 25x

 

 

Pop

(Color, Contrast,

Clarity)

9.6

9.4

9.6

9.6

9

8.6

9.8

7.8

 

 

Edge to Edge

Sharpness

9

9.6

9

8

6.8

8.2

10

7.4

 

 

Eyebox

9.2

8.8

9.2

8.2

7.8

6.4

8.2

8.2

 

 

DOF Forgiveness

9.4

7.4

9.4

8.8

7.2

6.8

7.2

7.8

 

 

Parallax Forgiveness

9.6

7.8

9.6

9.6

6.8

7.8

7.2

6.2

 

 

Focus Forgiveness

9.4

8.2

9.4

8.4

8.2

9

9.4

7.4

 

 

Mirage (effect)

8.8

8.2

8.8

8.4

7.4

6.8

7.6

7.2

 

 

TOTAL

65.0

59.4

65.0

61.0

53.2

53.6

59.4

52.0

 

 

GRAND TOTAL

(Near & Far)

74.3

69.8

74.5

69.3

58.7

63.2

70

57.8

 

 

* Scopes were tested on different days from the rest, this could affect results slightly

 

 

 

Editor’s Note: Testing at comparable magnification is tricky since the way magnification rings are marked is not reliable.  I would also really like to see a low light test and mirage test, but those can be tricky to set up.  The way different scopes render contrast and color makes a significant difference on mirage performance.  These subtle effects really come into their own when the conditions get challenging.

 

 

Field of View (FOV) in mrad

We can look at most manufacturers specs and see that scope X offers XX feet at bottom magnification and XX feet at top magnification at 100 yards.  This is great for knowing the extremes of your scopes magnification range, but what about in between, the results are not always linear.  Some scopes have pretty poor performance at the bottom but end up doing much better than other scopes at the top (NF ATACR scopes are notorious for this).  I should note that the diopter can have an effect on how much (or how little) FOV is seen; therefore, the results for each shooter with different eye correct may yield slightly different values.  My measurements here are from setting up each scope for my eye and then using my spidey senses to determine how much mrad of the reticle can be seen at a given magnification.  Measurements were taken using the magnification indicator listed on the magnification ring and is prone to error due to mfr tolerance as well as my own ability to set perfectly.  As such, take these values as a “general” rule, not as a hard fast rule. 

Mag

March 428

TT 525

ZCO 527

Vortex 636

S&B 327

S&B 525

March 540

Burris 530

5x

NA

33 mrad

33.2

NA

40 mrad

NA

NA

NA

10x

NA

20.5 mrad

18.1

21 mrad

20 mrad

19.5 mrad

NA

20.8 mrad

15x

15 mrad

14 mrad

12

13.5 mrad?

13.5 mrad

13.2 mrad

11.4 mrad

13.8 mrad

20x

11.2 mrad

10.6 mrad

9.1

10.5 mrad

10 mrad

9.7 mrad

8.5 mrad

10.6 mrad

25x

9.2 mrad

8.4 mrad

7.8

8.4 mrad

8 mrad

8 mrad

6.8 mrad

8.4 mrad

* * I completely botched getting numbers for ZCO, not sure how I made that mistake but sold the scope before I figured it out (these numbers are provided by @Huskydriver who graciously spent the time to obtain what his 5-27 shows at each spot.)Twilight Transmission (low light performance)

Editor’s Note: half-field FOV on the TT525P should be 38mrad.  I had a chance to measure it on several Tangent scopes and I am very confident of the number.

I set all scopes to 12x to allow for a larger exit pupil yet still give my eyes a challenge in the failing light.  From about 20 minutes after sunset, I begin testing both scopes side by side as the evening becomes darker and darker.  These results are very subjective and as I have aged I believe my eyes low light acuity has decreased.  You may have very different results depending on your age and how good your eyes are.

Low light at close

range on Evaluation

Target
Mag:  12x

ZCO

5-27x56

Vortex G3

6-36x56

Tangent

5-25x56

March

4.5-28x52

March G2

5-40x56*

S&B

3-27x56

S&B

5-25x56*

Burris

5.5-30x56*

 

 

 

 

 

 

 

 

 

 

Test Criteria

Rating

 

 

Pop

(Color, Contrast, Clarity)

8

7

8

8

8

8

7

7

 

 

Color Accuracy

8

7

8

8

8

8

7

7

 

 

Contrast Chart (High)

9

9

9

8

9

9

8

9

 

 

Contrast Chart (Low)

7

8

7

6

8

6

8

8

 

 

Perceived Brightness

9

8

9

7

7

8

8

8

 

 

Totals

41

39

41

37

40

39

38

39

 

 

* Scopes were tested on different days from the rest, this could affect results slightly

 

 

 

Resolution Line Chart (LPI)
It’s one thing for me to look through a scope and judge resolution based on a 1-10 ranking, but it’s quite another to look at line charts and determine how many lines I’m able to resolve at a given magnification, my resolution testing above is a good “first impression” but the line chart does not lie and provides a more quantitative result.  For most results you’ll see a range – it is hard to resolve exact values with your eye and I would try to narrow it down as best I could but sometimes eye strain, perfect alignment, etc. would get in the way.

A picture containing graphical user interfaceDescription automatically generated

Line Resolution

(lp/mm) Testing

ZCO

5-27x56

Vortex G3

6-36x56

Tangent

5-25x56

March

4.5-28x52

March G2

5-40x56*

S&B

3-27x56

S&B

5-25x56*

Burris

5.5-30x56*

 

 

 

 

 

 

 

 

 

 

Test Criteria

Rating (Highest in green, lowest in red)

 

 

(Burris 5.5x/Vortex 6x)

5x

20-22

23-25

20-22

18-20

18-20

15-18

15-17

18-20

 

 

10x

44-45

47-49

47-49

43-45

38-40

38-40

36-40

36-38

 

 

15x

58-60

60-63

60-63

58-60

55-58

48-50

50-52

60-62

 

 

20x

78-80

80-82

80-82

78-80

68-72

70-72

68-72

70

 

 

25x

90-93

88-90

88-90

83-85

75

82-85

70-75

78-82

 

 

* Scopes were tested on different days from the rest, this could affect results slightly

 

 

 

Editor’s Note #1: the accompanying chart indicates that resolution tests, both daylight and low light, were done at ~33 yards.  That presents an interesting conundrum since not all scopes in this group can focus that close.  More specifically, TT525P does not focus closer than 50 yards.  At lower magnifications, it may have enough depth of field for the 33 yards distance, but I know for a fact that on higher magnifications, the angular resolution starts to fall off when the target is closer than 50 yards or so.

 

Editor’s Note #2: this also calls for an interesting question of how to treat higher magnifications.  For example, to get a proper apples-to-apples comparison, it makes sense to do them at the same magnification.  However, what if one of the scopes can go to a higher magnification than others.  For example, the March 5-40x56 in the table above does not appear to resolve as well as some others on 25x.  However, with the March, you can dial up to 40x.  Does it resolve more lines on 40x than lower magnification scopes do on 25x?  Same question for Razor Gen3 on 36x.  Add to this the fast that magnification rings are usually not perfectly marked, so whatever is the 25x setting might be 24x or 26x (for example).  In that case, testing scopes on the same, as marked, magnificationmight introduce some errors.

 

Other factors:

Sight Picture (HD)

o   ZCO 5-27: larger than life sight picture with very thin outer periphery

o   Vortex G3 6-36: very wide HD like sight picture similar to ZCO with thin outer periphery

o   TT 5-25: Large clear image, thick outer periphery

o   March 4.5-28: Large clear image, somewhat thick outer periphery

o   March G2 5-40: Nice image with thin outer periphery, narrow FOV feels closed in

o   S&B 3-27: Excellent sight picture but with thick outer periphery

o   S&B 5-25: Excellent image but thicker outer periphery gives closed in feel

o   Burris XTR III 5.5-30: Decent image, thicker outer periphery

Image/Reticle shift with magnification change

o   ZCO 5-27: None perceived

o   Vortex G3 6-36: None perceived

o   TT 5-25: None perceived

o   March 4.5-28: None perceived

o   March G2 5-40: None perceived

o   S&B 3-27: None perceived

o   S&B 5-25: None perceived

o   Burris XTR III 5.5-30: Slight jump during magnification change

Focus Shift with magnification change (requiring parallax adjustment for best image)

o   ZCO 5-27: Failed to record (memory says it was on par with TT)

o   Vortex G3 6-36: Slight adjustment above 20x

o   TT 5-25: Slight adjustment above 15x

o   March 4.5-28: Slight adjustment throughout magnification range

o   March G2 5-40: None perceived

o   S&B 3-27: Slight adjustment at 20x

o   S&B 5-25: Quite a bit from 5-10x and 15-20x at closer ranges

o   Burris XTR III 5.5-30: Slight adjustments from 10-20x

Tunneling

o   ZCO 5-27: None perceived

o   Vortex G3 6-36: None perceived

o   TT 5-25: None perceived

o   March 4.5-28: None perceived

o   March G2 5-40: None perceived

o   S&B 3-27: None perceived

o   S&B 5-25: Quite a bit from 5-7.5x

o   Burris XTR III 5.5-30: None perceived

Flare/Halation (direct sun on objective at 15x)

o   ZCO 5-27: None when centered, some whiteout when off center

o   Vortex G3 6-36: Very good, slight flare when off center

o   TT 5-25: Good when centered, image can quickly wash out when off center

o   March 4.5-28: Excellent, probably the best of the bunch

o   March G2 5-40: Excellent, no noticeable degradation

o   S&B 3-27: Decent with some flare

o   S&B 5-25: Okay, pretty heavy flare

o   Burris XTR III 5.5-30: Some flare

 

Editor’s Note: Flare is an interesting thing.  The wider the FOV and the larger the exit pupil, the harder it is to control it.  ZCO has fairly generous exit pupil, but FOV is comparatively narrow which is likely done to control flare/halation.  March 4.5-28x52 has very wide FOV, but the exit pupil is significantly constricted for the same purpose.  Different manufacturers make these compromise decisions in different ways.  Personally, I run a sunshade or ARD device to minimize flare whenever I can and prefer to keep wide FOV and large low power exit pupil.  However, that is not always possible, for example, if use of clip-ons is anticipated. 

 

Overall Optical Assessment Results:
TT > ZCO > Schmidt 5-25 > Vortex G3 > March 4.5-28 > Schmidt 3-27 > March 5-40 > Burris XTR III

There were a few surprises for me in my testing so I’ll try to comment on the rankings above.  It is no surprise to me that TT came out on top, I have owned multiple TT’s and multiple Minox ZP5’s (a sister design to TT) and they have consistently outperformed every single scope I have put up against them, that is until this test where I found the ZCO to be practically neck and neck and the fact it is only 0.1 points behind the TT essentially says that on any given day it could equal or possibly outperform the esteemed leader in optical excellence.  The big surprise was how well the 16 year old (design) S&B 5-25 came out, putting the tunneling aside this scope is still a competitor in this highly competitive field, I think of it like father and sons – where the Schmidt might show some wear and tear but can still teach the adolescents a thing or two, the Schmidt is definitely not past its prime and with the 2022 updates S&B has made to the 5-25, it has brought new life into this aging design.  The next surprise was how well the Vortex faired against these big name and high price tag scopes, at around ½ the price of the TT, ZCO and Schmidt, this is the kid coming from the other side of the tracks and steamrolling through the defenders, sure there is room for improvement but Vortex found the magic formula with this optical design which has proved to be the best glass I’ve seen from Japan to date, and that brings us to the other Japanese scope maker whose name has become synonymous with quality – March.  The March 4.5-28x52 is the shortest scope of the bunch and has the smallest objective as well, this would put it at a deficit from the get-go but this scope performs more like the “Little Engine That Could”, puff, puff, puffing it’s way up the ranks and beating out several other scopes.  I would say the biggest disappointment  comes from the Schmidt 3-27, looking at MSRP this is the most expensive scope of the bunch at $5500 and I expected optical performance to match this price tag; however, one must also consider this scope has the highest erector magnification range of any alpha scope out there, and while the Schmidt did not get as high points as many other scopes – no other scope can do what this scope can, and that is offer a very impressive 3x at the bottom end and 27x at the top, if you need a scope to do everything and don’t expect it to compete with the best of the best then I think you’ll be pleasantly surprised.  The March 5-40 G2 comes in second to last compared to the rest of the alpha scopes which I consider it to be part of, it is still a decent contender and has some admirable attributes but it just can’t keep up with the other scopes in this class.  Not much of a surprise, the Burris came in last, but given it’s price point (now under $1300 street) this scope shows outstanding price/performance which is why it is almost always at the top of my list for budget FFP scopes

Editor’s Note: I agree that the 5-25x56 Schmidt is a better precision scope than the newer 3-27x56.  However, you have to keep in mind that the 3-27x was designed with a very particular military requirement in mind and that is what necessitated the broad magnification range.  The military customer required 3x on the low end for use with thermal clip-ons

A close-up of some binocularsDescription automatically generated with medium confidence

ERGONOMICS

Overall Ergonomic Assessment Results: 
ZCO 5-27 >= TT 5-25 > Schmidt 3-27 >= March 4.5-28 >= March G2 5-40 > Schmidt 5-25 > Vortex G3 6-36 > Burris XTR III 5.5-30

The overall ergonomic assessment is based on the features of the scope, how intuitive are they to use, how easy are they to manipulate.  Location and function play a factor along with how smooth dials are to turn, etc.  The layout of the ZCO is just superb, from the knurling to the large numbers on the turret, the overall size, the illumination features – I think this is what every scope manufacture ought to aspire to.  Tangent Theta has a feature that is the envy of the industry – toolless turrets that are an absolute pleasure to use, no more lost 1.5mm hex wrenches, or grabbing the 2mm only to realize your scope takes 0.050 – what a mess.  Everything on TT is laid out very well and easy to manipulate.  One of the biggest reasons for the S&B ranking is due to the spectacular DT II+ turret design – whoever came up with this turret should be promoted to chief engineer because they exude quality in every way, yes, we can argue till the cows come home about the illumination tumor, but everything else on this scope helps it earn its position.  The March scopes would rank higher if they had a better illumination module, it is hard to manipulate with gloves on and difficult to keep POA while trying to adjust, outside of that these scopes are designed very well and laid out well, the short design of the 4.5-28 lends itself to better match with clip-on devices should night shooting be your game.  The locking turrets of the G2 5-40 are outstanding, giving TT and Schmidt DT II+ a run for the money, would love to see this design translate into other scopes.  The Schmidt 5-25 is an older design, and it shows, but it works and works well.  The Vortex is nicely laid out and the Zero stop/set feature is a clever design, but the function and feel of the turrets leave a bit to be desired.  The Burris XTR III ergos look nice, but function is poor, good news is it sounds like Burris took notice and with the Gen 2 version called XTR IIIi it sounds like they’ve cleaned some of this up.

52760_jtc9bdea2qqfnqg_custom.jpeg

FIT & FINISH

Overall Fit & Finish Assessment Results:
ZCO 5-27 >= TT 5-25 > March 4.5-28 >= March G2 5-40 >= Schmidt 3-27 >= Schmidt 5-25 > Vortex G3 6-36 > Burris XTR III 5.5-30

What I’m looking for here is anodizing quality, how each piece interacts with each other, materials used and function as a working whole.  Once again I think ZCO slightly edges out the competition, the scope I had for this review was one of their Cerakote models and they did an excellent job on mine, previous ZCO’s I’ve had were their normal black finish which is more matte than other scopes sometimes “shiny” anodization.  On par with ZCO is TT, quality reeks from this scope everywhere you look, the precise fit of every single part abounds with the precision that Tangent Theta is known for.  March is a boutique manufacturer that hand assembles each and every scope, if ZCO and Tangent Theta are at the top then March is not far behind and right there with them is Schmidt, known for quality before most of these companies even existed, there is not much not to like about a Schmidt.  The Vortex and Burris are a little harder to place, I’d say Vortex has a slight edge in overall craftmanship but Burris is not far behind, both manufacturers have some area for improvement.

AREAS OF IMPROVEMENT

ZCO
I am not a fan of the 36mm tube, I understand they say it was necessary for uncompromised performance at max elevation, but I’m not convinced.  Anyone who’s read my previous reviews of ZCO will know I am not a fan of the MPCT series reticles, this is very much personal preference, but I would sure like to see a less intrusive tree design.  Every competitor offers some kind of scope caps, whether they be proprietary or Tenebraex but all ZCO offers is bikini caps, not saying I don’t like bikini’s but a little more coverage would be nice.

March

The first item that comes to mind is for March to design non-translating turrets, that is - turrets that do not rise and fall as you spin them up or down, almost every manufacture not named Nightforce does that these days.  I would also like to see a similar locking turret design with larger diameter turret as is on the 5-42x56 HM.  Get a brighter illumination module like so many other new scopes that have excellent low light quality with no bleed but also bright enough to be used when the sun is out, and a different design (illumination) for easier manipulation of settings especially if wearing gloves. 

Tangent Theta

Get a daytime bright illumination module.  Larger and more bold numbering and dashes on the turrets, maybe even reduce the height of the turrets.  Reduce spacing on turrets to 12 mrad per rev and increase the travel to 36 mrad total.  Tangent should invest in better multi-coating to help eliminate flare when the scope is pointed towards the sun, depending on position there can be significant flare and ghosting which shouldn’t be there at this price point, sure you can put on the ARD to help eliminate this, but many will not be using that part for most of their shooting – I would be happy to tell TT to not put an ARD that the majority of users never use in the box and instead use that money to invest in better multi-coating to prevent flare in the first place. 

Editor’s Note: I would not be in such a rush to blame coatings.  See my notes on flare above.  I use ARDs and sunshades all the time.

Schmidt and Bender

Get rid of that illumination tumor – oh wait, someone at Schmidt finally listened and a couple new models in 2022 offer illumination in line with parallax – left-handed shooters rejoice!  The new 6-36x56 could prove to be a superb scope that has the potential to best them all, question is whether or not it actually will, we’ll have to wait and see as Schmidt is not known to be fast to production after models are announced.

Vortex G3

Fix those turrets.  Well, some could argue that they work as designed, that is to say they do work; however, the feel and function seem a bit lacking compared to even the predecessor Gen2 model.  Not sure who it was that thought a dog poo brown anodization color would be a hit, but most buy these scopes for their price/performance, not for their looks.  Larger and more bold numbering and dashes on the turrets – take a queue from ZCO and Nightforce.

Editor’s Note: I went to Vortex a couple of months ago and tried the turrets on several dozen G3 scopes.  They were excellent.  Whatever needed to be fixed is fixed. 

Burris

Get a daytime bright illumination module.  Loosen up the mag ring and parallax, do some more investigation with your knurling and what is comfortable.  When a customer says mag or parallax needs to be loosened – fix it, don’t just say it’s in spec and send it back.

 

FINAL THOUGHTS

This is the first time I have ever taken on a review of this magnitude, previously the most was four scopes and I think that is somewhat manageable, but this was brutal and will undoubtedly be my last review with so many scopes as it has taken me months to get all my numbers and thoughts to the screen.

Finally, reiterating what I mention at the very beginning, I am biased (we all are) and I have my own preferences and this review has opinions that are influenced from that, hopefully I’ve done an adequate job throughout the review to share where my personal preference comes into play in order to help you better evaluate a particular feature.  I might rank a feature as a 10 but you would rank the same at a 7.  A couple years ago I tried out a new scoring system but ultimately was not satisfied, I do not like giving numbers to any scope because there are so many factors that could affect outcomes at any given time, so any numbers I do provide are meant to be for that day and against those scopes I could test side by side.  Give me the same scope on another day and it might fair a little better or a little worse due to any number of variables not the least of which is atmospherics which are constantly changing.

So here is my personal opinion on each of these scopes

·        ZCO 5-27x56: May be the best all around scope on the market today.  Does so many things well optically and mechanically.  It is a work of art that could be in a museum someday labeled as “the best scope of the 21st century” – well at least the first ¼ of the 21st century, the only thing holding it back from getting a military contract is that 36mm tube.

·        Tangent Theta 5-25x56:  If ZCO’s museum piece gets best scope then right next to it are a set of turrets from Tangent Theta, I’m not sure these will ever be beat, after 8 years they are still the best turrets in the business, if you need toolless design there is none better, perfect for switch barrel rifles and those seeking refinement that is found in only the very best scopes on the market today.  The glass in the Tangent is best in the business.

·        Vortex Razor HD Gen3 6-36x56 (or G3 for short):  To see a scope that is half the price of the alpha’s in this group perform at a level (optically) that could keep right up with the best, I was not expecting that, if you’re looking to save a few pennies I have nothing but high praise for this scope and feel we’ll be seeing a lot more of it in the field and in competitions.

·        March 4.5-28x52 HM:  The fact that an ultra short can even compete at this level is impressive, if you need a short-bodied scope that has class leading FOV then this scope is a very compelling option.  May be my new favorite for DMR purpose gas gun use and is just as good on a nice bolt rifle, but limited exit pupil performance take it out of my recommendation for true crossover work where low light may be involved.

·        March 5-40x56 Gen2:  Decent optical performance with superb turrets but have a hard time recommending it when the Vortex G3 performs considerably better optically and with a cheaper price tag.  What the 5-40 does have going for it is a relatively light weight design.

·        Schmidt & Bender PMII 5-25x56:  If you can find a good deal on this scope in the classifieds then it is worth picking up as long as the tunneling issue isn’t going to be an “issue” for you.  The Gen2 model that Schmidt is updating for 2022 (why not just call it PMIII?) has some welcome updates to this scope; however, the brand new PMII 6-36x56 could very well take the crown for Schmidt’s best scope to date, but we’ll have to wait and see.

·        Schmidt & Bender PMII 3-27x56: A high price to pay for a massive magnification range, one must ask yourself if you really need 3x at bottom do you really need 27x at top?  I would recommend the ZCO or TT and even the PMII 5-25 if you’re looking for optical excellence, but if having that extra FOV at the bottom is critical, this scope is a great option, just don’t expect it to compete optically with the best of the best.

·        Burris XTR III 5.5-30x56:  It took Burris too long to bring illumination to this model, but alas, it is finally here.  These scopes offer some of the best bang for the buck performance out there and are one of the first I recommend for those on a budget (funny to think that a $1k scope is considered budget these days).  Is it good enough to topple any of the alpha scopes, no, but at 1/3 the cost or less most are not expecting that to begin with.

 

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Editor's Note: I did not want to pollute the whole thing with affiliate links.  Most of these are available from Eurooptics and a few other fine retailers https://bit.ly/3tYC193

Addendum files are here: https://darklordofoptics.locals.com/post/3076505/alpha-class-long-range-scope-review-addendum-file-1  and here: https://darklordofoptics.locals.com/post/3076515/alpha-class-long-range-scope-review-addendum-file-2

 

 

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Revic Acura RS525i 5-25x50 RH2 Reticle

Here is a look through the Acura 5-25x50 scope from Revic. https://alnk.to/gp27CYM
The reticle they have in there is what is probably the best general purpose hunting reticle on the market today and the scope itself is rather nice.
It is a bit heavier than I'd like and it is in MOA. Beyond that, I am having a hard time finding something to complain about.
Now that I think about it, the one other reticle that is conceptually similar to the RH2 is Burris' 3PW-MOA in their 2.5-12x42 Veracity PH scope. That scope is normally about $1100, but EO has it for $799 at the moment for some reason https://alnk.to/h6H9yhT
That smallest of the Veracity PH scopes is another design that should be much better known than it is.
Same goes for the Revic Acura. While Revic's smart scope is well known, the more conventional Acura barely gets any mention. That's unfortunate. It is a truly excellent design.

00:12:21
Looking at Telson's PH2 Reticle

Telson is a new optics company out of Canada. I've talked about them a bit in the past. It is one of the several companies I occasionally provide input to, mostly when it comes to reticles.
The way the reticle design process went with Telson, was a little different that what I normally do. I did not just hand them over a reticle drawing. These guys are shooters and I wanted to try a more collaborative process. One of the principles at Telson, Jared, would do an iteration and send it to me. I'd go over it in some detail, mark it up and send it back to him. Then, we would get on a video conference call and hash it out.
Lather, rinse, repeat.
In the grand scheme of things, these are not my reticles. These are Telson's reticles, with me being the sounding board and providing some pointed advice.
So far, I rather like how it turned out.
I have one of their first production scopes in my hands. It has not yet been on a gun, which I will rectify shortly. I have, however, been looking ...

00:06:37
Q ERECT9R Suppressor

There are widespread reports of arson and looting coming out of the California Fires. There is even a theory out there that all of these fires are started by various chilean and venezuelam gangs, so that people would evacuate and leave their houses easy prey for looters. National Guard is already deployed to deal with that, but as we all know, the only way to discourage looters and other criminals is for law abiding citizens to be empowered to defend themselves, their families and their homes.
That made me think of suppressors. They are very much illegal in California, but they are a wonderful addition to our home defense guns.
The only handgun suppressor I own (so far) is the 9mm Erect9r from Q, which is the subject of this video.
https://alnk.to/2FCTrpa
Most of my use has been on a 9mm Glock handgun, but I did run it for a while on a subsonic 8.6BLK. Erect9r is not rated for supersonic rifle ammo, but it worked very well with subsonic 8.6 using this adapter ...

00:05:20
SHOT 2025: Telson Optics Reticle Overview

Here is a video we recorded at the Telson Optics booth during SHOT last month.

As is usually the case with me talking, it is a bit off the cuff. And not as structured as I’d like, but it should give you a good idea of how the reticle design was approached.

SWFA SS HD 3-9x42: The OG MPVO

This scope has been around forever. I have two.
It might be the OG MPVO. On one hand it could use some updates (covered windage turret, zero stop elevation and an illuminated dot would be nice). On the other hand, it has a track record of "just working" that is second to none.
I was moving some scopes around last night trying to decide what I should put on my 458SOCOM AR and somehow ended up with this very scope on it.
Today, I had some questions for the SWFA guys and they mentioned that they finally got some of these in stock again, hence this post.
https://swfa.com/collections/swfa-ss/products/swfa-3-9x42-ss-hd-mil-quad-reticle-30mm-tube-1-mil-clicks-ffp

If you are looking for proven and simple, this is about as proven as you will find.
I have not had the windage turret slip on me during travel, but I still put a piece of tape on it to keep it in place, just in case.
It also does not hurt that this is an FFP scope just under 20 ounces.

DLO Tumblers

I mentioned it during a podcast and a couple of people expressed interest.

I am going to place an order for a few more of these coffee tumblers, so I am looking for a headcount.

These are graphite gray tumblers with ceramic lining on the inside.

One side has my DLO logo and the other says "Making Sense Of The Nonsense since 1991" (the year we came to the US). A couple of quick photos are below.

Last time I purchased a few, they cost me $25 each.

I set up a payment ink, so that I can get an exact headcount:
https://buy.stripe.com/6oEdUbgHs0U3h208ww

If you are interested, please place the order via the link above. I'll let it sit for about a week or so to get the exact number of tumblers I need, then place the order.

Last time, it took the about ten days to send me the tumblers, so if you order one it will get to you towards the end of February.

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The Copper Creek Cartridge Experience
back to the reloading bench I go...

Like any self respecting firearm enthusiast I always have some number of projects going on concurrently.  One of them is a fast twist 22-250 bolt gun.  

Every once in a while Tikka makes a run of 22-250 T3x rifles with 1-8” twist barrel and I happen to have one.  That dramatically changes the varminty character of the 22-250. With a modern 80gr bullet, it is a nicely viable hunting rifle for small and medium game (just about perfect for pronghorn).  It is also a very capable long range number.  At the altitude where I live, it does not go subsonic until you get to about 1400 yards.

1-8” twist will not stabilize the heaviest available 22 bullets, but works well enough for anything up to about 80grains, depending on the bullet construction.

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Thinking About Open Light and Factory
NRL Hunter

Since my ultimate goal with competition is to shoot NRL Hunter matches in an Open Light class (to more closely resemble the rifles I actually hunt with), I set up my 308Win Fix and 6.5PRC Stag Pursuit for Open Light and Factory respectively.
I have a lot more 308Win ammo than 6.5CM anyway, so that is the rifle I prefer to practice with.

Now that I have a little time before the next Hunter match, I decided to see if I can properly control the muzzle rise with the lighter rifles.  To that extent, I went and sighted them in before proceeding with shooting at various plates mostly between 500 and 600 yards to see if I can control the  muzzle well enough to spot my misses.

The wind was pretty sporting and inconsistent today.  On top of that, I decided to use the lightweight pint-sized gamechanger bag to add to the challenge.  While we were at it, I also tested the new tripod plate from Sunway photo.  I generally like it, but it needs to be a bit wider for shooting purposes.  It is great for holding binos and a wind meter.

Here is how the bag fits on it:

Not bad, but a little more width would help.  The tripod is Field Optics Research's Dome Top Hunter 32.

The 308 Fix is a known quantity since I have talked about it quite a lot in the past.  In this iteration, I have it set up with Tangent Theta 5-25x56 in an Aadmount. 

The muzzle device is Q's Bottle Rocket on top of a Cherry Bomb.  

The bipod is Gunwerks' Elevate.

Rather amazingly, the balance on this thing is just right as is.

However, I must have made a miscalculation somewhere because I thought this would weigh just a hair below 12lbs.  It weighed in at exactly 11lbs and based on the Arizona match, my scales measure a little higher than the ones they used over there (about 5 ounce difference for my 6.5CM gun).

Despite that, I had no real issues controlling the muzzle rise with this setup.  I was able to comfortably spot my shots and see trace as long as I was properly square behind the rifle.  Interestingly, at this weight, it is something I might actually hunt with, but a lighter scope might not be a bad idea.

This also means that I have enough weight budget to use Q's Trash Panda suppressor instead of the Bottle Rocket brake.  While the brake is not obnoxiously loud, I do prefer to run with a suppressor when possible, so I will try that next.  

With the 6.5PRC, I know for a fact that without a decent brake, I could not spot my own shots, so I have Area 419's titanium Hellfire brake on it.  This was my first time shooting with it.

It was substantially loud, but not as obnoxious as some competition brakes I have seen.  More importantly, muzzle rise was minimal at most.  I doubled up on the hearing protection, but the rifle became impressively more mild mannered.  Again, shooting standing off of a tripod in the wind, I had not problem at all spotting my own shots and watching trace when shooting a bit further out.

The rifle is Stag Pursuit in 6.5PRC

The scope is Vortex Razor HD-LHT 4.5-22x50 in Talley MSR rings (the lightest 30mm rings I had on hand).

The bipod is Gunwerks' Elevate.

As shown, the rifle clocked in at 11.7lbs on my scales.  I am inclined to not mess with it too much, but if it comes to that, I can mount a somewhat heavier scope without too much trouble, but I am inclined to let it be.

I did a good number of dry presses and live fire with both rifles.  One thing that surprised me a little was that the Fix had a smaller wobble zone than the Pursuit.  I think I can attribute that to the balance point on the Fix being a little further forward, but some experimentation is in order.

I was definitely shooting better with the Fix, despite the Pursuit being chmabered for a much flatter cartridge.  Perhaps, a heavier bipod will shift the balance point sufficiently.

That is one of the advantages of the Fix design: the buttstock, while sturdy and comfortable, is so light that it is very easy to balance.  Pursuit's beefy buttstock while comfortable, could use some weight cutting.  If I want to ever use this rifle for NRL Hunter's Factory division, I can not make any mods, so I'll do with what I have.  If my arithmetic is correct, I could probably get a lightweight Ckye-pod to shift the weight a little forward.

With all that, I am not sure how I feel about trying to game this too much.  For now, I'll just shoot the rifle as is and see if I can train my way out of this wobble zone issue with some deliberate practice.

I have to admit that Area 419's muzzle brake is pretty impressive.  The rifle is now extremely soft shooting and the muzzle stays down.

The next step for the 6.5PRC is to either buy or work-up some proper match ammo.  All I have is Hornady's 143gr ELD-X which shoots pretty well in this gun, but isn't match ammo.

Hornady loads their 147gr ELDM in 6.5PRC, so that is probably the first option to try.  Looking at the costs, this might be one of the few calibers I have to reload for.

If I were to go compete with a sub-12lbs rifle today, I think I would still take the 308 Fix despite all the ballistic disadvantages.  It is probably just the familiarity factor, but I simply shoot that rifle better.  In the future... we'll see how it goes.

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Trident Barrel
by X2 Devgroup

At this point, I do not remember any more how I stumbled on this barrel, but it is not unusual for me to be looking for relatively random things while I can't sleep at night.
Then again, given how much time I spend at the range, looking at different AR barrels is not all that random.
My take on AR-15s is that they are supposed to be lightweight and accurate enough to reach to the outer limits of the capability envelope of whatever they happened to be chambered for.  I know they are plenty of people out there with freakishly accurate AR-15s that are set up with thick barrel.  They are impressively consistent, but a heavy AR-15 sorta defeats the purpose of an AR-15 to me.
Then again, I do have a couple of moderately heavy small frame AR variants.  One is built around an 18" 223Wylde WOA barrel and the other around a 22" Satern 224 Valkyrie barrel.  I'll talk about those builds in due time and I enjoy shooting both of those rifles quite a bit.  However, I view them as practice rifles since 5.56 and 224V are nice practice rounds for longer range stuff and it is easier to balance heavy barrel rifles for shooting off bags.
Most of my ARs are a lot lighter than that and they are built around 16" barrels of moderate weight.
Ideally, I want this rifle to weigh no more than 8lbs with a scope, typically an LPVO of some sort.  This is the type of rifle I expect to be equally comfortable doing timed short range drills and shooting plates between 600 and 800 yards (with appropriate ammo).
Over the years, you have seen pictures of several of these variants.  One of my favourites is built around a 16" Proof Research carbon fiber barrel.  That's the AR in this video:


I have another one built around an experimental 16" barrel that is sleeved in AlSiC, a rather exotic material.  That way of making barrels did not go into production, unfortunately.  It is not the most intrinsically accurate barrel I have, but it is very well behaved when hot.
Naturally, I also have a couple that simply have thin, near-pencil profiles.
The basic problem with most of the light weight barrels I have seen to date, is what happens when the barrel heats up.  Most barrels end up with substantially larger groups when hot, which is OK.  However, quite a few of them end up with the group centroid also changing, sometimes significantly, which is not OK.
That is an especially commo problem with carbon fiber wrapped barrels.  Christensen barrels are famous for their wandering zero.  Proof Research barrels seem to be better and the two I have do not wander around when warmed up.  However, it appears that some do.  With carbon fiber wrapped barrels I tested, Proof was the best, but it has been a little while since I experimented with it.  More recently, I have heard from others that Helix6 and Bartlein barrels are more consistent, but heavier. 

Most lightweight barrels designed for light weight have an odd (to me) profile with too much metal removed by the chamber.  Some years ago, Adams Arms had their own pencil profile barrel that left a lot more metal near the chamber, then went thing quickly.  The way Q does their light weight barrel is also done with heat distribution in mind.  Their barrel leave a lot of metal near the chamber, then run what is essentially a straight taper.

All this barrel research is probably how I stumbled onto the Trident Barrel from X2 Devgroup https://x2devgroup.com/trident-barrel/

It has very deep flutes which dramatically cuts weight.  It is about five ounces lighter than my carbon fiber Proof barrel of the same length.  Fluting can often cause problems when not properly stress relieved, but it seemed like they were paying attention to this kind of stuff and taking care to not introduce stress.  After digging through my memory banks a little, I remembered that a know someone at that company.  It was time to pick his brain.  He is a pretty serious shooter, and he was happy with these barrels.  Then he said something that made me perk up and pay attention.  He talked about vibration and how these barrels felt "dead".  That is a lot of the same verbiage I hear about structured barrels from TacomHQ.  Once my interest was properly peaked, I looked around, relaized I have enough spare parts to build an upper and that I have a built up AR-15 lower that is not attached to anything.

Once the barrel got here, I gave it a careful look.  In terms of the quality and consistency of the machining, it looked very good.  Those are some seriously deep flutes though.

The barrel, somewhat unusually, is dimpled for both of the gasblock screws and in a way that will work with the majority of gas blocks out there.

I had an Aero upper and an Aero handguard of relatively ghastly color, that probably explains why it was heavily discounted.  Since I fully expect it to be scratched up and covered by dust before too long, I could not care less.

I plan to run it with and without a suppressor, so I added Q's Cherry Bomb compensator to it.  As this is written, I have not fired it yet, but will shotly.  After some consideration, I decided to mount March's excellent 1.5-15x42 MPVO on it. https://alnk.to/b7zh0YQ  That is still the purest expresssion of the MPVO concept on the market today, so I thought it was appropriate.  Depending on how it performs, March may or may not stay on there permanently.  However, for initial break in, long range practice and accuracy evaluation, it knocks the socks off of any and every LPVO ever made.

Most AR-15s are reasonably broken in somewhere between 200 and 500 rounds, so I am not going to stress about accuracy too much in the beginning.  I'll get it sighted in, do some positional shooting and keep an eye on whether there is any abnormal behavious.

The rifle ended up weighing a bit under 6lbs without optics and a bit under 8lbs with March 1.5-15x42 in Burris XTR Signature rings. https://alnk.to/4MBZHCL The suppressor will push it a hair over 8lbs, but that's close enough.  With the bipod as pictured it just under 9lbs.  The bipod is not going to be on there permanently.  If I have to choose between a suppressor and a bipod for weight reasons, Jumbo Shrimp it is  https://alnk.to/880ol8Y

Eventually, I will likely switch to a lighter LPVO on this gun since I prefer the March on a hunting rifle, but in the meantime, configuration-wise, it is a near perfect SPR.

The nice thing about all these AR variants is how easy they are to accessorize, but all those extra gadgets do add weight.  For example, if I throw Steiner's excellent C35 v2 clip-on on there, it is another pound. https://alnk.to/8iV9jU9

An offset red dot sight will not add much weight, but it still adds a little.  Same goes for the light/laser (I think I have an extra CMR-301 https://alnk.to/880olc5 somewhere here that I can use.  It is not super fancy, but it works).

Before it is all said and done, if I keep everything on there, I will end up with am 11.5 to 12 lbs gun.  It sounds like a lot and it is.  However, if I did not start with a sub-6lbs gun before everything that I plan to latch onto it, we'd be talking about a 15lbs setup.  That's why I want a truly accurate sub-6lbs AR-15 and that is why I am always on this "holy grail" barrel search.

Stay tuned for the updates as I test this thing.

 

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