I had a once in a lifetime opportunity to get an MWIR ELR clip-on or buy a new truck. Trucks are always available, so I chose differently.
Edit: I don't want to derail this AI pic thread any further so this is the last I'll say about it: it's almost more useful as an ELR spotter.
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1/2” easy - 10 rounds all touching was the best so far.
109 LRHT
42gr N160
Alpha SRP Brass
CCI 450
2.84” COAL
2966 fps avg
As much as I like 6mmC, I hope to be able to get a 6.5x47L barrel at some point instead.
109 LRHT
42gr N160
Alpha SRP Brass
CCI 450
2.84” COAL
2966 fps avg
As much as I like 6mmC, I hope to be able to get a 6.5x47L barrel at some point instead.
Sorry to take the topic back to barrel twists.
Had some free time at work so decided to make a table for the bullet stability for ELD-M, SMK and TMK bullets.
Good news is that even at low speeds (2400fps like you might see in a short barrel) most projectiles are at least somewhat stable, but do definitely need to choose wisely if you want a fully stabilized projectile in a 1:12 twist barrel.
I then took the worst bullet I'd looked at (175gr TMK) and compared to a 1:10 and 1:11 twist.
Basically at any realistic velocity you are fine with a 1:11 twist or faster, obviously the heavier projectiles (180gr+) start becoming and issue but I had to stop somewhere. Maybe if I'm bored at work again I'll add more projectiles and twists.
TLDR is, don't buy a 1:12 twist barrel if you can help it.
Had some free time at work so decided to make a table for the bullet stability for ELD-M, SMK and TMK bullets.
Good news is that even at low speeds (2400fps like you might see in a short barrel) most projectiles are at least somewhat stable, but do definitely need to choose wisely if you want a fully stabilized projectile in a 1:12 twist barrel.
I then took the worst bullet I'd looked at (175gr TMK) and compared to a 1:10 and 1:11 twist.
Basically at any realistic velocity you are fine with a 1:11 twist or faster, obviously the heavier projectiles (180gr+) start becoming and issue but I had to stop somewhere. Maybe if I'm bored at work again I'll add more projectiles and twists.
TLDR is, don't buy a 1:12 twist barrel if you can help it.
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Also, while I still can't fully contribute to the picture thread, I'm getting very close now.
Again, it isn't just about the bullet weight, but the bullet length as well that matters.
Plenty of folks ran the M40, M40A1, M40A3 and M40A5 out past 1000 yards just fine, which has a 1:12 twist barrel, and ran M118LR rounds, essentially Federal GMM SMK 175gr. I did reach out to a sniper instructor peer who has combat experience with the M40 rifles, who confirmed the distance and capability for me.
We also have @FUNCTIONAL with very direct experience running the M40. Sorry to call you out but it's important. Hell I want to share more of that shot data just as a solid reference...
There's no reason why the 1:12 Lothar Walther barrels aren't extremely capable. But, the right round needs to be chosen for it.
And so this circles right back to why I made my original post sharing the shot group: the Sierra 168gr TMK round with it's improved 9° boat tail seems to work best in this barrel, which I've so far tested in 20", and I have no doubt will perform equally well in my 24". My next range day I hope to get 300 round shot groups, and later, 700 round shot groups depending on wind.
I'll share all the images and data I have on this round. For us Yankees, the Federal GMM SMK 168gr & 175gr, and the Federal LE T308T 168gr, seem to be the most effective and cost conscious round to use in these barrels.
I don't have experience with Lapua or Berger rounds in these calibers, so I leave it to others to comment on what else shoots well. I invite it as this data is important for folks like us to have.
And yes, I read every single post in this forum regarding the Arctic Warfare and AT308 looking for ballistic data of factory rounds, and found excruciatingly little.
I hope the attached data helps for context. And I have much more data that shows how the length of Hornady rounds do not stabilize. I also tried the stability factor with a Berger 185gr round without success, but I'd entertain actually shooting it to see how it performs.
I don't understand how @hafejd30 is shooting 178gr ELD-X rounds. As far as I'm concerned, he's committing voodoo witchcraft as everything I have says that round should shoot like shit in a 1:12 barrel. But he's doing something right with his hand loads.
Shot data simulates shooting in early March at Cameo Shooting Complex in Palisades, CO. USA
And my groupings again with the T308T 168gr TMK for good measure so everything is in one place:
I really only have that barrel should I want to throw a clip-on on there for coyotes. I might pop the 6.5 Creedmoor off here in a few hundred rounds and shoot the 6 for a while, we shall see.
I just confirmed 100% it’s a 1:12. Has shot many groups under 1/2 moa. Always a hammer and always holds zero. Going on year 5 with my baby
I have a 18” 1:10 Bartlein ready to thread on when this one decides to go. But lots of life in it yet
Just breaking spring in the UP of Michigan so starting to sling lead more again
Gave me a chance to move the gun room over the winter. Loving the new setup
No worries @HKSniper11B I'm a big proponent of try it and see how it goes. Many hate the 175 RDF. When they saw my success with it a few guys tried and couldn't get it to shoot...I probably inherited 1k 175RDFs from people who just gave them to me after giving up. Likewise I have horrible luck with ELDM bullets.
Either way... going to do some experimenting after my 22lr match Saturday. Found 11 rounds of fgmm with 185 gr burgers. Going to sling them through my A5 with 1:12t and see what happens. If I have 175 or 168 fgmm I'll do a direct comparison.
Edit. For reference it shoots good out of a 11.25t barrel. The middle group I'll chalk up to me screwing up.
Either way... going to do some experimenting after my 22lr match Saturday. Found 11 rounds of fgmm with 185 gr burgers. Going to sling them through my A5 with 1:12t and see what happens. If I have 175 or 168 fgmm I'll do a direct comparison.
Edit. For reference it shoots good out of a 11.25t barrel. The middle group I'll chalk up to me screwing up.
My AT shot Hornady factory 175s 4in at 100yd.... I've never had ANY factory Hornady shoot well in my rifles. I did have one .6MOA 10-shot group at 600 with my 175SMK handloads so I seem to echo your experience.
This is an old photo. I don't think this was the day that it happened, but I have definitely shot the silencer cover (seen on other bench) off the rifle. It is generally recommended to not do that.
"You vs the guy she tells you not to worry about"
My barrel is a 1:12 LW AT. Started life at 26” and I was getting 2800 even from M118LR 175gr SMK.
I recently chopped it to 20” and spent a weekend plinking to 1 mile.
We put 200 rounds of 168gr Fed GMM and another 150 rounds of M118LR through it.
Both shot the same poi at 100m and there was only 20fps between the loads at the muzzle 2600 and 2580 respectively. Both shot extremely well at 100m with very small groups around 3/4” or better.
However as we started to increase the range the 175gr bullet started to shine in both wind deflection and ability to make impacts past 1000m. This shouldn’t come as a surprise to those of you who understand BC and the fundamentals of LR shooting.
The 168gr became very challenging at 900m and out. We struggled to get consistent impacts at 1000m and couldn’t land a single shot at 1100m.
The 175gr however was making impacts at 1200m with some regularity and was a breeze at 1100m. We also had a stab at the 1640m target and recorded 1 hit which I put down to pure luck as conditions were challenging at best (long grass and 5-15mph full value winds that regularly switch direction).
Next step is to load some lapua harass with 176 Atip match and see if we can compete with the 6.5 crowd at the next PRS match.
TPH
I recently chopped it to 20” and spent a weekend plinking to 1 mile.
We put 200 rounds of 168gr Fed GMM and another 150 rounds of M118LR through it.
Both shot the same poi at 100m and there was only 20fps between the loads at the muzzle 2600 and 2580 respectively. Both shot extremely well at 100m with very small groups around 3/4” or better.
However as we started to increase the range the 175gr bullet started to shine in both wind deflection and ability to make impacts past 1000m. This shouldn’t come as a surprise to those of you who understand BC and the fundamentals of LR shooting.
The 168gr became very challenging at 900m and out. We struggled to get consistent impacts at 1000m and couldn’t land a single shot at 1100m.
The 175gr however was making impacts at 1200m with some regularity and was a breeze at 1100m. We also had a stab at the 1640m target and recorded 1 hit which I put down to pure luck as conditions were challenging at best (long grass and 5-15mph full value winds that regularly switch direction).
Next step is to load some lapua harass with 176 Atip match and see if we can compete with the 6.5 crowd at the next PRS match.
TPH
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Got the new skins and thumbscrews on the AT today
A decent couple if I do say so myself
A decent couple if I do say so myself
Yup!
It’s funny. Anytime I post a pic in my gun room or my yard the first comments I get are the spacers on the butt or my well groomed lawn
I have a 15.5” LOP
Loading some 308 ammo for the OG green one tomorrow. The brown is a 260 Rem with a bolt converted to WSM at black canyon customs. Waiting on a HV barrel for 300 WSM. Can get a M24 contour now but hoping to get the added weight and 5” shank at 1.25”. Planning on a 24” 300 WSM and 28” 260 setup
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Shoot it I had known you needed skins I had them somewhere for the AT I sold you homie
Well, at least you didn’t post pics of your well-groomed butt, or the lawn in your gun room.Yup!
It’s funny. Anytime I post a pic in my gun room or my yard the first comments I get are the spacers on the butt or my well groomed lawn
Alright, I'm doing another round of invites to the Accuracy International Fan Club Discord Server.
Its a nice way to talk to each other in real-time in different channels and categories, and even have voice/video group hangouts.
The link will be valid for 7 days. Click the link and it'll get you set up: https://discord.gg/HQK93ZRt
Its a nice way to talk to each other in real-time in different channels and categories, and even have voice/video group hangouts.
The link will be valid for 7 days. Click the link and it'll get you set up: https://discord.gg/HQK93ZRt
Here are the 1:12 results, and for verification I shot the 185s out of my 20" 1:10t AI barrel and use 3 other types of Ammo. I wanted to reshoot the 185s in the A5 but was a little tight on time and the shop closed before I could get back in to buy another box. May update this again if I do.
Also did my next step in load Dev on the 16.25" 6.5creed with 140 eldms. Got a nice node from 40.5-40.8. Seems I can over/ under shoot and never skip a beat here. Also zeroed the 6x47 load and got my dope for a April 5th match I plan to shoot it in (finally).
Also did my next step in load Dev on the 16.25" 6.5creed with 140 eldms. Got a nice node from 40.5-40.8. Seems I can over/ under shoot and never skip a beat here. Also zeroed the 6x47 load and got my dope for a April 5th match I plan to shoot it in (finally).
Not a fan of links into links. Is this good stuff? Does this link take you to what you are referring too? Don’t want to go surfing. Thanks
If you don't know what Discord is, have never touched it, and don't want to use an app, then, don't click it. It is not a webpage.
Those who know and understand what Discord is, understand the format of the link: yes, it takes you directly to the server. But, yes, you will need to install Discord on your computer or mobile device to use and access it, not unlike using Instagram or anything else.
AX50 ELR with a B&T suppressor. Insanely quiet..
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Los like it has potential. Going to grab another box or 2 and try it in my 3 308 barrels. 1:10, 1:11.25 and 1:12 twists. My range sells fgmm for $35 a box so it's not horrible to test.
Some long action and short action fun today.
I hope we LH people get a Sage green version at some point
I have an opportunity to buy a lot of 42 AI 308 5 round mags from a friend who bought a whole store that was going out of business. They are AI brand mags.
What would be the price (per mag) at which these would move easily? That will help me determine how much to offer him for the lot.
Thanks.
What would be the price (per mag) at which these would move easily? That will help me determine how much to offer him for the lot.
Thanks.
Has anyone messed around with alternative cheek rests for the AXSR?
I can never get an upright head position, unless I lower the cheek rest all the way, and shift it over, which then becomes an issue for running the bolt. I have my rest lowered all the way now, and while its manageable for a few hours a day behind the gun, but all day on the range, its an issue.
I just tried the KRG Overmold cheek piece, but the bolt spacing is about 1/8" off. Im curious about the Anarchy Outdoors AX cheek piece, but not sure if its any different than the standard AXSR, other than lower profile. Not to mention the bolt spacing being compatible.
I can never get an upright head position, unless I lower the cheek rest all the way, and shift it over, which then becomes an issue for running the bolt. I have my rest lowered all the way now, and while its manageable for a few hours a day behind the gun, but all day on the range, its an issue.
I just tried the KRG Overmold cheek piece, but the bolt spacing is about 1/8" off. Im curious about the Anarchy Outdoors AX cheek piece, but not sure if its any different than the standard AXSR, other than lower profile. Not to mention the bolt spacing being compatible.
The Anarchy AX cheekpiece won't work on the AXSR, sorry
Meh. Good for single targets. But xii runs all over it for multiples and things relatively close
Now the Hiss HD. That should be something special
Seems to be around $50-$55 a mag shipped in the px after a quick search.
Recent Thread for reference
SOLD - Accuracy International, AICS/AE .308 Magazine (5 Round)-20 total!
I have 20. Accuracy International AICS/AE MKII,III .308 Magazine (5 Round) mags 17 of the 20 are Brand new! $55 buys them a piece, but if you buy 4 or more I'll do $50 a piece and pay shipping. Update:5 have been sold-15 Left!
www.snipershide.com
I hear it’s same image but double the FOV
I guess this is still an AI thread.
Ideal I think , to normal distances , would be xii on rifle. And someone with ReconV calling corrections.
Recon was phenomenal
Had the AXSR out to 2000 and 2600 yesterday. Had some close misses on my targets at 2600, but the combination of the 12-18mph incoming winds and my standard ipsc steel was not helping at that distance. Mostly let me try out the Nightforce prism and verify some elevation numbers.
Lots of hits at 2000yds. Also, Hornady hit indicators are pretty great
Lots of hits at 2000yds. Also, Hornady hit indicators are pretty great
