DarkLordOfOptics
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Guns, Optics, 2nd Amendment and resisting the Left in everything they touch.
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Primary Arms micro prismatics

Primary Arms has two micro prismatic sights at the moment, both of them part of their SLx product line. I've got a video on these coming shortly, but I have been slow with editing, so I figured I should lay the groundwork, so to speak. I added them to my updated recommendations, so some additional commentary seemed like a good idea.
I have spent quite a lot of time in the last year or two trying to think of a variety of ways to set up AR-15 rifles. I sorta know how I like to set them up for me, but that does not necessarily translate in how I think they should be set up for others, for example for my wife who is eight inches shorter than I am and less than half the weight and for my kids (8 and 10 years old as this is written). To be fair, my 8 year old son will probably be bigger than I am before I know it, but in the meantime I need to set up something he can grow with.
The fashionable thing, of course, is to set everything up with LPVOs and offset red dot sights. That is not too dissimilar to how I set up my AR (see the second Guns of the Dark Lord video), except I use offset irons and, for me, those are really supplementary sights. I use the Razor Gen3 LPVO on that gun on 1x all the time.
My wife has taken a couple of gun classes with me. She seems to like the classes (or at least likes them enough to go with me sometimes and develop some proficiency), but she is not a gun enthusiast. Also, when we are home, making her practice requires political skills and powers of persuasion I do not possess. It is easier to take the kids with me to the range, but getting them to do structured practice can be a bit of work. Besides, I sorta want to keep it fun for them.
What is fun for people who are not yet (or will never be) gun nuts? Being able to grab the gun and shoot at different targets, at different distances, and do so without putzing around with equipment.
Given that I am also dealing with people who are physically pretty small, the whole setup has to be light ad maneuverable.
So, what we've got for the moment is: light, quick, accurate enough, easy to use with minimal number of controls.
Well, that sorta spells out some sort of a low power prism with an offset red dot and the lighter this whole thing is, the better.
What is low power? That's another interesting question. For speed, you sorta need something with unity magnification, but the drills I am setting up for training tend to involve taking a look at something before shooting it. There is a lot to be said about being able to go fast and I am really not good at the whole going fast thing. However, I can make a really good argument that we are not living in a video game and being able to recognize whether whatever you are looking at needs to be shot is as important as being able to shoot quickly and accurately.
For target recognition, a little bit of magnification goes a long way. My wife's AR sports Trijicon Compact ACOG 1.5x16S with Primary Arms' ACSS reticle. 1.5x may not sound like much, but magnification is multiplicative. It is roughly equivalent to the difference between 2x and 3x or between 4x and 6x or between 10x and 15x.
For me the range of "low magnificaiton prismatics" starts at 1.5x and ends at 4x. 4x is probably higher than most people are comfortable with for this kind of use, but I spent so many years shooting my Elcan OS 4x that I am supremely comfortable with it as long as the reticle stands out well enough.
After that whole preamble, let's go back to Primary Arms' new batch of prismatics. They have two SLx micro-prisms, 1x and 3x, and a GLx 2x that is more of a standard/large-ish prism design. It is still a very compact scope since prism size is tied to magnification and FOV. With 2x magnification, you do not need a huge prism to get good FOV an large exit pupil. The GLx 2x has a 12mm exit pupil and the whole thing weighs 11 ounces with the mount and everything. If I had to choose one optic for a lightweight AR, this would definitely be in the running.
The SLx micro-prismatics take that whole compact thing to another level. They are not quite as nice as the GLx, but they are notably smaller and lighter. What really shocked me was that since they are part of Primary Arms SLx line, my expectations were pretty low. Older SLx products I have seen did not exactly inspire me, but these are legitimately good.
And small. Did I mention small? I may have mentioned small. Well, they are small and lightweight.
Time will tell if they are robust, but they seem to be so far.
They barely have any effect of the handling of light weight ARs and remarkably enough, they are very easy to get behind. The eyepieces were designed with comfort in mind.
Optically, they are better than I expected. Now, I am not going to trade in my Elcan any time soon, but I am not going to buy another fixed power Elcan or Trijicon either. For what I need, these are plenty good enough and for the price of one Elcan I can have multiple ones. To be fair, I do plan to pick up a switch power 1x/4x Elcan, but that is a conversation for another day and there is a reason for my madness.
For ARs that are light, capable and easy to use, these new micro prisms are awesome. Now, the natural question is, if microprisms are so good, why would anyone want to buy a large prism scope? They do get pretty beefy as the magnification goes up. They offer a very wide and immersive FOV which has certain advantages. I'll talk about large prism scopes in a separate post.
Going back to micro-prisms, the other application for these is to assuage my paranoias. I really like to have backup optics pre-sighted in for most of my rifles. For conventional hunting rifles I usually use very lightweight SWFA Ultralight 2.5-10x32. For ARs. I think it will Primary Arms' micro-prisms. They are small, light and easy to pack. Unexpectedly, the integrated mount comes back to zero surprisingly well if I use a torque wrench.

To summarize all of this: not only do these punch above their price range in terms of overall performance, I can also have spares with minimal effort and without going broke. I'll have the videos up with some extra commentary soon. In the meantime, this was why they are among my recommendations.

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SCR2 Mil Reticle in Burris XTR3i 3.3-18x50

As I work through the several 50m crossover scopes I have here, one of the things that becomes clearly apparent is how it is entirely feasible to have rather differing approaches to making a crossover scope.
One of the biggest differences is the treatment of the reticles.
Burris' XTR3i unabashedly approaches it from a precision/competition side of things. SCR2 Mil reticle is relatively thin, full featured and just excellent for shooting plates and other smallish targets.
That means all on its own, it is not great on low powers, especially as you get below ~6x.
That is where well designed illumination comes in. They illuminate a "T" shape that is 4 mrad wide and 3 mrad tall. You can switch between green and red illuminators depending on where you are.
The whole thing really works quite well.
Overall, there is a reason I view XTR3i 3.3-18x50 as one of my reference standard designs in the $1k range.
https://alnk.to/9bv3NDk

This video is a quick "through the scope" look at the sight ...

00:09:13
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
6 ARC MiniFix is Finally All Put Together

instead of being scattered all over my work bench in pieces.
It is a relatively standard MiniFix, kinda like this one https://alnk.to/dLiRqZ8 except it has a 16" Proof Research CF barrel (that Bud's price for a MiniFix, of any flavor, is the lowest I have seen in a long while).

Initial indication are that it is capable of excellent accuracy.
16" barrel is launching 108gr ELD-M Hornady factory ammo at an average of 2579fps with 32fps spread and 8.6fps StDev.

That is nicely supersonic at 1000yards at the density altitude up here (around 6k in the winter and a good bit more than that in the summer).

After a little deliberation, I decided to pop Telson's new 3-18x50 Toxin on this gun. The magnification range is a good match for the cartridge and I needed a platform to test this scope anyway. Eventually, it will likely get a 3-15x50 Tangent.

Now that I think about, I have three Fixes and three Tangents. Will it be "Tangenting the Fixes"? or "Fixing Up the Tangents"?

As shown in the pictures, ...

Athlon Closeouts

Athlon has announced a bunch of new stuff at SHOT and it looks like a few items are at closeout prices:
https://alnk.to/6bWhaL6

Several stand out.

Ares ETR 4.5-30x56 with APRS6 for $800 is very good https://alnk.to/9xkFOhq

Cronus ATS 50-640 thermal for $2400 is a steal https://alnk.to/4fRWnP0

I have one and use it all the time.

President's Day Deals

The discount industry never sleeps. I do not know why we have President's Day. All I know is that if you need to buy a mattress, this is the day.

Apparently, if you want to buy an optic or a firearm, it is not a bad day either.

Eurooptics has a 20% discount on some Vortex products and the more usual 15% on most others. The 20% requires a VTXPRES20 discount code and, apparently, applies to these items: https://alnk.to/31sCKyY

Several of the products I routinely recommend are in there Razor Gen3 6-36x56, UH-1 Gen2 and Venom 5-25x56, for example.

Field Optics Research has a 25% off with TRUMP47 discount code https://www.fieldopticsresearch.com/ I guess you now know how their politics line-up.

Primary Arms has discounted what looks like the entire Faxon product line https://alnk.to/6TBikAg

Brownells has 15% off with PRES15 discount code on quite a bit of their own stuff and on some "Brownells Only" Daniel Defense products.

Palmetto has a ton of heavily discounted stuff and I am not going ...

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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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