My AR build

[Supermoto]

I wanted to build a AR for both 3gun and shooting groups.
I started with a White Oaks SPR 18" 1/7 twist full length gas system barrel, added a DMPS carbon fiber handguard to a DMPS upper. It all sits on a Bushmaster lower with a Timney trigger. Right now it is wearing s super sniper 10x, but that will soon get replaced with a 1-4x

The barrel likes 75gr bullets, and when I learn to shot groups, I'm sure it will print some nice ones.

A big thanks goes to the person that built it for me. Thank you

This is best group that I shot, using some russian Match 75gr ammo. all of the 55gr groups were terrible
Shooting a fuzzy target in the late afternoon, with stacked 2x4 for a rear rest, doesn't make for the greatest groups, but I'm happy for the first time out.

 

[Moderator]

Dude, your guns f***in rock. They are modern art master piece's.

 

[SKS Ray]

Nice looking rifle and great picture.

 

[dreppucci007]

Dude, your guns f***in rock. They are modern art master piece's.

+1

 

[Carguy]

Now that you afforded that absolutely AWESOME rifle...www.mytargets.com...those nice tight groups look better on a real bullseye. 8~)

 

[Dan S]

Nice rifle! Now you can start to play at other matches. It's addictive, shooting 3 guns.
Was the 55 grain ammo Russian or handloads?

 

[Supermoto]

The 55gr was either American Eagle HPBT or it was Black Hill Blue box,

The 75gr was Prvi Partizan Match.

Have not started handloading yet, still haven't decided on a bullet. Thinking Sierra 69gr HPBT, Hornady 68 or 75gr HPBT or Nosler J4 69gr for shooting groups at 300, but I also want an inexpensive bullet for blasting. Not sure what to get for that

 

[dvajda]

Privi is some awesome ammo, but it isn't Russian, I believe they are Serbian. I use the same rounds out of my .223 Remington bolt, and the groups are sub 1".

With a barrel twist of 1:7, the 55gr rounds you shoot end up spinning too fasts and become unstable. You'd find it easier to shoot 55gr if you had a 1:12 barrel, since it wouldn't end up spinning the lighter bullets as much. That said, a 1:7 barrel will shoot 65, 68, and 75gr bullets much better, since it can stabilize the heavier rounds by giving them more of a spin. Stick to the heavier stuff, and you'll get nice accuracy, but I can tell you've noticed that

Nice gun, nice groups!

 

[Dirtypacman]

I love it - nice little report on it also.

 

[bpm990d]

M193 Ball with 55 gr bullets will shoot fine out of 1/7 twist rifles. It shoots better in my experience than the M855.

B

 

[Joe R.]

Black Hills 77 grain SMK's will shoot good to out of that tube too.

Joe R>

 

[noidlight]

nice build Mike! If you are looking to do some load development you are more than welcome to use my press, dies ect. I got all the goodies for .223 reloads