DarkLordOfOptics
Politics • Science & Tech • Sports
Guns, Optics, 2nd Amendment and resisting the Left in everything they touch.
Interested? Want to learn more about the community?

Learn more first
Updates

As some of you probably guessed, I am off on work travel again, which limits my ability to test optics, edit videos, and stuff like that.
At the moment, I am in a hotel in New Jersey, drinking a surprisingly decent Old-Fashioned in the downstairs bar of my hotel.
The days here are spent at a customer location trying to figure out a few things in the lab. Once I am out of there, it is very hard to resist spending a couple of hours on catching up with the Ukraine developments. The developments are interesting, but nothing particularly earthshattering. I'll keep an eye out on what's happening and put together an update during the weekend, likely as a live show.
My original plan was to kick off an optics lecture series this week with an "Introduction to thermal imaging", but my flight schedule is interfering with that. It will have to wait for a few days.
Before I left for this current trip, I did look at a few things.
I finally went and test-fired my Keltec CP33 that came back from service. It had almost identical issues to to the earlier ones, but with a little less severity: "stovepipe" failures to feed with CCI Mini-Mag ammo that is supposed to work well in this gun. That was quite disheartening. Then I went and tried CCI's AR Tactical 22LR ammo and that fed without any issues. If I understand this correctly, this load has bullet shape slightly modified to work in semi-auto 22LR ARs and that seemed to make a difference with CP-33.
While I will talk to Keltec and find out what ammo they tested it with, having something that works is already adequate. Not ideal, but adequate.
I have wrapped up with the test of Crimson Trace CTS-1550 red dot sight. Frankly, this was one of the more boring tests I have done. It did not give me any issues and I carried it with the same battery for 11 months. I will continue using it as an offset sight on a long gun and let you know if any issues develop. In the meantime, I decided to kick off another test of a Crimson Trace red dot sight on my carry gun, this being the new RAD Micro Pro. It is a decidedly more sophisticated sight than the CTS-1550 with a supposedly beefier housing and "shake awake" motion sensor. The base of this sight is narrower, so it is a better fit for slim carry guns like my Glock 43x. That does mean that the battery is smaller: 1632 instead of 2032. With more efficient circuits and shake awake, the battery life should be good still, but time will tell. The base of this new sight is slightly taller than that of the CTS-1550. I can co-witness with stock Glock sights, but barely. I think I will get a slightly taller set of irons for this gun.
Another handgun I have been messing with is the Alpha Foxtrot AF-C. It is essentially a Glock 19 clone, except it is a very refined one. The frame is aluminum, so it has very different vibration profile compared to regular plastic frame Glocks and I must admit that it is a very smooth shooting gun. The slide is pre-cut for a red-dot sight with RMR footprint, so what I have on there right now is a Holosun 507C-X2 with ACSS Vulcan reticle. It is a really exceptional red dot sight, but it is slightly wide for the slide. I think it is a better match for the 10mm Glock where it used to reside. I plan to take a handgun class with this gun when I am in Florida for work next month. I'll let you know how it goes. I am currently going through a holster selection for it and I have an interesting option to try. More on that later.

The preciously mentioned 10mm long slide Glock, is at the moment the platform on which I test the new Steiner MPS enclosed emitter reflect sight. The MPS is also proving to be fairly trouble free. Most of my carry sights do have auto adjust dot, while the MPS is manual adjust only. Battery life has been good and the design does offer a couple of interesting advantages. The interesting thing here is that the emitter of the MPS is in the top of the sight. That keeps the optical axis and base height very low, so co-witnessing is easy., but you so see a little bit more of the sight's body above the sight picture. It does not seem to both me much so far and I like the low mounting. It fits on Aimpoint ACRO mount and I simply got a Glock MOS ACRO adapter plate for it. It has not shaken loose and seems to work well. Since the emitter is up top, the curved lens is angled differently (up vs sideways), so the parallax behavior is different. It is perfectly symmetrical left-to right, but has some up-down asymmetry. Still, the overall collimation quality is quite good. For rifle use, I would probably prefer a more sophisticated reticle than just a dot, but it does work well on handguns. I have not spent a ton of time trying to destroy it, but from a maintenance standpoint, I have to admit that enclosed sights are notably easier to keep clean. Supposedly, they also have an advantage if you drop it, but I do not drop my guns all that much. I might test that out though.
With conventional riflescopes, I have been spending some time with Zeiss LRP and I like that scope. The next big review I finally wrap up with will be the comparison of fancy high end tactical designs.
The final wrap up of the Trijicon Tenmile 3-18x44 review is also going to be happening fairly soon. I am not excited about how long this scope is and that length did give me some mounting issues, but aside from that, the scope has a lot to recommend itself.

Interested? Want to learn more about the community?

Learn more first
What else you may like…
Videos
Posts
Articles
AR-15 Handguards with integrated Arca rail

I had a couple of ARs I wanted to set up for long range training. There is more to do with them, but I started out by swapping out the handguards for models with an integrated full length Arca rail. Larger flat on the bottom of the handguard helps it settle on the sandbag and makes it easier to shoot off of a tripod. I also found the ability to slide the bipod to different positions occasionally helpful.

The two handguards I have been testing are:

Fast Track my Catalyst Arms: https://www.anarchyoutdoors.com/fast-track-arca-precision-rifle-handguard-ar-15-rpr-only/?ref=fl0iza41

IWI/CMT HDM https://alnk.to/8iWcTQE

Both work well once installed, but IWI/CMT was ultimately less of a hassle to get properly lined up.

Fasttrack barrel nut arrangement is a little goofy and getting properly lined up took some trial and error. Here is the video they made that shows how it is set up. I was going to do my own, but once I got it all aligned, I did not want to mess with taking it up and ...

00:19:29
Burris XTR PS Wrap-Up

The first Burris XTR PS scope I got my hands on landed here in the beginning of March.
That means I have been messing with this design for a bit under four months. That does not quite qualify as a long term test by my standards, but it is a fair amount of time and quite a few rounds shot, mostly 5.56 and 308.
I have both of the models of XTR PS and both work well.
https://alnk.to/3U3cZEC

For matches and such, I would lean toward the 5.5-30x56 version, but for general purpose use, the smaller 3.3-18x50 model does have an edge. You can shoot a match with it, take it hunting in the mountains or slap a thermal clip-on in front to go shoot some pigs. While not light weight, it is a very flexible design owing to moderate size and mid-pack magnification range.

As I said in the video, I think XTR PS is a meaningful step forward in simplifying how we shoot at distance.

I will provide occasional updates as I continue using the scope.

00:26:02
5x Prismatic Wrap-up

This is not the end of my commentary on 5x prismatics, but it is a wrap for an unintentionally very long term project I had. I spent an unhealthy amount of time evaluating these four prismatic riflescopes:
Element Immersive 5x30 https://alnk.to/gzXEPUr
Swampfox Sabre 5x36 https://alnk.to/aAPTubq
Vortex Spitfire Gen2 5x https://alnk.to/3co4hVD
Primary Arms SLx 5x https://alnk.to/2jOhnT7

Two are large prism designs. Two are small prism designs.

The order in which I list them above corresponds to the image quality, from best to worst, although there isn't a ton of difference between SLx and Spitfire Gen2. Purely on the merits of resolution, Sabre is comparable to them as well, but much wider FOV and forgiving eyebox does put it a step above in terms of performance (at the expense of about a pound of weight). Element Immersive 5x30 is a different beast optically and it should be at a higher price at which it sells. It resolves better, has higher contrast and widest FOV of the bunch. Side-focus adds ...

00:16:40

Leupold Scope dump at CDNN.

I just got an email, multiple models and reticles for 3HD, 4HD and 5HD scopes. You need call to get prices.

https://www.cdnnsports.com/optics.html?manufacturer=LEUPOLD

Independence Day, 2025

Publishing a "Happy Independence Day!" a day after independence day is probably bad form. It is also bad for posting affiliate links. Everybody and their grandmother is having discounts and I am not posting any links. To be honest, I do not particularly like posting general links and I simply did not have time to dig through everything and come with specific product links.
Still, if you plan to be buying something from one of the retailers I have an affiliate account with, I would appreciate it if you were to start with one of my links listed in the FAQ: https://darklordofoptics.locals.com/faq

I started writing the more substantive part of this post yesterday, but got sidetracked with thinking about the origin of the ideas that make America and ran out of time. I was only able to get back to it now. I suppose, better late than never.

We live in the world that, as far as the details go, is dramatically different from the world of the founders of the United States.

For the majority of this ...

July 04, 2025

This is a good deal:

https://alnk.to/c0a5bf9

Scoping Gas Guns
an interesting question that acme in via PM

I received this question via a private message and thought it was interesting enough to answer it in some detail.  I have been thinking a lot about appropriate optics for gas guns recently, so this came it at the right time.

 

Here is what I ahve been messing with last few days:

 

Above: 18" WOA barrel 5.56 AR-15 with Burris XTR PS 5.5-30x56 on it.

Below: 22" Satern barrel 224Valkyrie AR-15 with Delta Stryker 3.5-21x44 on it.


For obvious reasons, I am not posting who asked the question, but what I'll do is send him a link to this article, so that he gets an answer and we might have a good discussion.
Here is what I received:

Had a question for you
I have a Knights Armament SR25 6.5CM with a 14.5" barrel - I plan on shooting 100 - 600 yards at targets at 100 yd intervals
I am favoring the TT 315P with an Aimpont Acro mounted on top -( see you liked the TT315M) - would that be enough magnification?
I saw the SB SB 5-20 which offer more top end - I like the turrets on the Tanget and tooless Zero - what are your thoughts between the 2?
If I stayed 400 and under - how do you see the TT315P with the Acro Red dot against the SB 1-8 Short Dot (saw your review on that)

There isn't really enough information in the question for a simple answer, so let's consider a couple of options.

What is the gun for? 

For shooting medium range (out to 600) with occasional close range use?  If yes, go with a conventional scope and offset or piggybacked RDS.

For shooting at close distance with occasional med/long range use? If yes, so with a nice LPVO like the above mentioned S&B Short Dot 1-8x24 https://alnk.to/3J8vlFv.  It is quite capable at long range, but where it will really knock your socks off is up close and personal.

The question of what is enough magnification is pretty personal.  For me, 3-15x is plenty, but I shoot a lot off of the tripod and off of barricades which likely influences my decision.  For that, my 3-15x50 TT315M Tangent works great and 6mrad of elevation is plenty.  https://alnk.to/gVNkUXB  175gr #08 out of a shoter tube will drop in the 5 to 5.5mrad range at 600 yards.

For a dedicated long range semi-auto, other than the looks, there isn't much downside to a larger scope, which is why I set up Burris' XTR PS on the 5.56 AR pictured above.  It is for my son to learn to shoot at distance and to us in next year's BOTC match.  https://alnk.to/gp33YuR

If I were setting up an accurate semi-auto and wanted a high mag scope for it, I would likely lean toward March 4.5-28x52. https://alnk.to/dLjHgjh  It is compact, relatively light and very good optically for any use other than the dead of the night (for which we should be using clip-ons anyway).

S&B Short Dot is a very nice scope, but March is a newer design and, other than the lowest light, has an edge in terms of image fidelity and stray light control.

TT315P Tangent is a veyr ncie scope and toolles turrets are appealing.  However, there is a weight penalty to that.  For me, that was not worth it.  I ahve 5-25x56 and 7-35x Tangents and those toolless turrets are spectacular.  However, in a 3-15x50, I am quit ecomfortable with simpler 6mrad per turn knobs on the TT315M.

 

Read full Article
A morning with a chronograph

When I tell people that I am using Hornady's factory ammo for matches, I get occasionally surprised looks.  Occasionally.  Most of the time, I get fairly condescending looks from handloaders who would not let a factory round pollute the chambers of their precision rifles if their lives depended on it.

To be fair, if I had the time, I might be reloading as well.  I might be able to do better than modern factory ammo, but the truth is that I am not a quarter MOA shooter, so a lot of that would be lost on me.  The UKD matches I fidn most interesting can be done by a competent shooter with a 1MOA gun.  I am working on that first part.  I reload when I have to, but if I can get factory ammo that's not outrageously expensive and that shoots well, I will go with that every time.

I looked around and realized that I have about 600 rounds of Hornady 147gr 6.5CM factory ammo from two lots.  400 rounds from one that I will use during the match later this month.  The remainder I will likely use up practicing prior to that.

I woke up early and snuck out to the range while my family was still asleep earlier today.

I set up in the 100 yard tunnel we have.  I took my four shots to zero with the lot I plan to use for the match.  Then I fired a six shot ~0.7MOA group.  That's accurate enough for my purposes.

Here are the chronograph results:

It is slow, but accurate and consistent.

Then I shot a five round group of Hornady 147gr ammo from the other lot.

Both of those lots are not too shabby for factory ammo.  POI was within 0.2mrad between the two lots, all laterally.  

 

I had some other ammo on hand, so I fired two five shot groups with Berger 144gr hybrid target ammo and Sako TRG 136gr.

Here is what I got for five rounds of Berger:

That's not a ton of statistics, but it is a data point.  The group was ~1.1MOA

 

Here the data for the Sako TRG 136gr ammo:

This ammo showed some mild pressure signs, but not too significant.  

Again, this is not a ton of data, but Hornady is looking pretty decent here.

I'll repeat the zero retention and consistency tests a couple more times between now and June 18th when we head to Wyoming.

I might pick up a couple more boxes of Hornady 147gr from a different lot to get some more data.

More to come.

 

Read full Article
First PRS Match is behind me
High Noon at Del Norte

My first PRS match is officially behind me.  It was, I think an officially sanctioned regional PRS match at the shooting range called Del Norte about an hour from me (just east of Rio Rancho).
As I discussed previously, rather than using the rifle I originally prepared for it, I ended up having to change gears at the last moment and slapping a 5-25x56 Tangent on my daughter's 6ARC MiniFIx.  A lightweight 16" Proof barreled 6ARC is not an ideal set up for PRS competition, but, in the grand scheme of things, the rifle did hot hold me back at all.  I had a couple of weights that fit the Q-cert handguard, so I slapped them on there as well, which got the rifle to right around 12lbs.  The balance point was almost where I want it, but not quite.  In all other ways, this was a very handy rifle to shoot.  I am actually thinking of getting a couple more weights that I can stack on it (Sawtooth weights are stackable), so that I can shoot some future local matches with it.  It shoots Hornady's Black 105gr ammo very well (it also shoots 108gr ELD-M and 103gr ELD-X well, but I had a larger supply of Hornady Black ammo on hand).

It chrono'ed pretty consistently for factory ammo.  Here are the measurements for a 20 shot group.

If I were to take out the fastest shot, SD drops down to 8fps.  

In terms of wind performance, it is a 5mph rifle, so slightly better than the 308 ammo I was going to use originally, but not as good as the 6.5CM that was my intended match rifle for this year (we make plans, but then life happens).

I do have to admit that I really enjoyed shooting the match with the MiniFix.  So much so, that I am seriously thinking of building another one for myself, since this rifle is technically my daughter's.

The closest shot we had was a bit over a couple of hundred yards.  The furthest was around 1150.  That was a bit challenging for the 16" barreled 6ARC, especially since the terrain there is tricky and wind is doing strange things.  Morning was relatively quiet wind-wise, but then the wind becamse gusty with changing directions.

It was a one day match with about 30 shooters (six squads) and ten stages.  The 17 year old kid who won the match was in my squad with his dad.  Apparently he is on the US team, so it should not be surrpising that he won.  He was very good.

Overall level of the shooters in the match was quite good.  I really was not sure what to expect.  Somewhat paradoxically, the only matches that I have shot in so far are the much larger two day NRL Hunter matches.  In those, I am just out of the bottom third in terms of skill level.  In this match, it was pretty much in the same spot, I think.  

The terrain was a little bit like Cameo, I think (I have been there, but not shot there), with some angle changes and sufficient vegetation to make getting on target occasionally troublesome. 

Only for Supporters
To read the rest of this article and access other paid content, you must be a supporter
Read full Article
Available on mobile and TV devices
google store google store app store app store
google store google store app tv store app tv store amazon store amazon store roku store roku store
Powered by Locals