AR accuracy - 75gr BTHP through a 0.67" ring at 100 yards

[benEzra]

...off a bench. Without hitting the ring. He takes the shot at 1:59.

http://www.youtube.com/watch?v=aIu_hY_zfGo

The ring is about 0.67" inside diameter. The guy is a member over on m4carbine.net and got the idea from a video contest (he's trying to get views), but the gun content is real. Here's the setup he used:

http://www.m4carbine.net/showthread.php?t=49286



The load was 75gr BTHP load I worked up for it using win brass and RL-15 powder.

Specs:
Noveske 16" barrel
Larue Receiver
Larue 13.2 Rail
Nightforce 2.5-10x32 with NP-R2 reticle (MOA/MOA)
Trigicon red dot on top of the NF (4 MOA dot)
Larue SPR mount. Its the 1.93 one, sits a little lower
LMT lower
Geissele Hi-Speed Trigger
LMT SOPMOD
JP BC with ION BOND finish
MIAD grip
H-Buffer
AAC M41000 suppressor
Larue FUG
Larue sling

I was also surprised that the gun shoots better with the AAC suppressor than without. I was always under the impression that suppressors make accuracy go to heck, but with most suppressors that apparently isn't the case.

Disclaimer, I don't know this guy, and I'm not pimping his video; I think that this is a heck of a shot, and shows the capability of the platform.

 

[Zak Smith]

Modern suppressors usually either do nothing or slightly increase accuracy. There is a theory that the "quiesced" atmosphere at the muzzle inside the suppressor is more conducive to accuracy than an exposed muzzle. It is also possible that the muzzle mass changes and/or damps inconsistent vibration modes during firing.

However, I personally believe that given an accurate rifle, any perceived increase in accuracy is due to: (1) most shooters seem to be more accurate with a suppressed rifle due to psychological recoil factors, (2) increased rifle mass generally increases apparent accuracy due to limited and/or less rifle movement during recoil

 

[benEzra]

Zak, that makes sense. The human startle response to Really Loud Noises is pretty hardwired, I'd think.

 

[blitzen]

Not down playing anybodys shooting because that is damn fine shooting but, it can be done with an AR with less money. I have shot a .35 in 5 shot group with a RRA Predator Pursuit rifle with hand loads and a 3x9 Leupold. Never had no reason to blab on the internet about it. I thought this was fairly common.

 

[Welding Rod]

Good shooting.

I am glad he video'd it. Anything that helps to raise the expectations for accuracy among the firearm owning community I think is a good thing.

I believe a sunshine pumping media and many shooters' low expectations have allowed the factories to sandbag on production rifle accuracy for way too long.

 

[EdLaver]

Not down playing anybodys shooting because that is damn fine shooting but, it can be done with an AR with less money. I have shot a .35 in 5 shot group with a RRA Predator Pursuit rifle with hand loads and a 3x9 Leupold. Never had no reason to blab on the internet about it. I thought this was fairly common.

+1, I agree, its impressive, but 200 would have been a lot more of a challenge. I am sure it wasnt a cold bore shot either, OP do you know?

 

[ForneyRider]

Yep, my 1:9tw does .6in 5shot groups at 100 yards. But the 53gr will do .488 inch from last summer's competition on here.

R15, Varget and AA2230 have all done well with that 75gr Hornady Bullet.

I was more consistent when I put the bullet "out to the lands".

 

[MechAg94]

I have a RRA Predator Pursuit Upper on a cheap DPMS lower with match trigger. I have gotten just under 1/2" at 100 yards with 68 gr HPBT reloads. That was my best group before moving on to shoot other rifles. Some of getting to the point of shooting that good is training yourself to do it also.
I consistently shot under 1" with the reloads, but struggled to get down to 1/2". With Black Hills 68 grain match ammo I could get under 1", but not lower.

I agree that 200 yards would be more to brag about. I've gotten under 1 MOA at 200 yards, but it is more difficult to keep the same tight groups at longer ranges.