Home Forums Hunting & Shooting AR and Tactical Rifles AR10 basics?

Id still like to know how that rifle shoots in the black rifle challenge here. 3 shot groups arent really a good indicator of how "accurate" a rifle truly is.... mine shoots sub 1/2 moa 3 shot groups with the load it likes. Hell, it even shoots sub 3/4 moa 5 shot groups out to 450 yards with the 168 Hornady match bullets. But i straight up call it an honest 1.6 moa rifle.

I wasn't familiar with the black rifle challenge, so I took a look. I'm sure it's a good assessment of mechanical accuracy, and I might be interested in such a challenge with a rifle set up to be a PRS rig, or a heavy chunk built for prairie dog towns or possibly just LR targets. The R-25 GII is not what I'd consider for that role, and for me, a lightweight, hunting-style rifle that was purchased for pigs and deer inside 300-350yds does not really require such a stringent test. It'd be interesting, I suppose, but if this rifle will group three shots in 1 MOA in three consecutive groups (especially in different conditions/days/ranges), I consider it a MOA gun for my purposes. Just one three-shot group? Then probably not, although it's always nice to see promising signs of things that may come....

Funny story, check your new factory rifles over very well when you get them. I just bought a brand spanking new S&W Performance center AR10 6.5 creedmoor and the damn barrel nut was only hand tight!!!!!!!!!!!! SOB..... Seriously, I just took the barrel nut off by hand. Now I need to get a damn wrench. I should have just put one together myself... Lesson learned..

Made a barrel nut wrench this morning. Seasoned the threads at 40 ft. lbs and then did a final torque to 70 ft. lbs. Hand cut out tool worked great. Rifle back together, and yes, I'll post a range report :

What no channel locks? And two grunt torque check

Ha ha.. Happy fathers day to all you old grumpy bastids. Im going to shoot my new fathers day present. Then the kids are taking me out to dinner.

Just got my first AR10. I have an AR15 in 5.56 and 6.8. Got this one cheap from PSA. $540 including tax, plus another $25 at the LGS for the transfer. 20" SS barrel 1-10 twist with rifle length gas. I added the MAGPUL stock and a AR Stoner muzzle brake.



Shot it for the first time Saturday. Seems a bit over gassed. Brass was landing 10-12' away and the brass was beat up pretty bad.

First up was a box factory Winchester 150 PP to zero and check cycling on the center target. This ammo shoots about 1.5" in my bolt gun so I was not expecting much. Had one box left so used it here.

Then 3 rounds of SSA 168 gr match factory rounds to check accuracy potential on the left upper orange dot. This was only 3 rounds, but they show great potential for this barrel. Now if I can duplicate that load. That factory ammo shoots the same from my bolt gun.

I had loaded 40 rounds of Hornady 155 amax with a mid range load of CFE223 just to break in the action/barrel, but only fired 10 rounds on the right side of the target.Those were just a tad on the hot side so I will reduce the loads a little. I was not aiming real carefully, more focused on checking the cycling.



My AR15s have adjustable gas blocks and I have them tuned to where they shoot reliably but soft. Brass lands 3' away. I am planning on getting a adjustable gas block for this AR10 and hope to soften it up a little.

I bought one of the 20” GII Remington R25 308’s last year. It shoots surprisingly well and is around 7.5lbs with its fluted SS barrel. Their blueprint is not a bad one. Handles like an AR15 and is becoming one of my favorite hunting rifles.