300 AAC Blackout build and range report

[Rocket88]

I recently completed an AR-15 in 300 AAC. I built the rifle up form various parts sourced from online vendors. Product selections had more to do with what was in stock than any master plan:

Upper:
AR Stoner BBL, MED contour, 5R, 1:8
DPMS de-featured thick wall upper
DPMS carbine length free float 2 piece tube
DelTon BCG
BCM large charging handle
Datum Gear low pro gas block and DPMS tube
YHM flash hider

Lower:
CMMG Multical
Rock River 2 stage trigger
ARFX skeleton stock
Houge grip

The rifle went together without issue, lower and upper fit is excellent with little rack. I used a poly wedge in any case to make the fit a bit tighter. It looks great and handles well. My intended use for this is feral hog hunting. To that end I worked up some hand loads based on various forum postings as well as QuickLoad. What ultimately wound up shooting the best for me at 100 yards is this:

125 gn Speer TNT HP
19 gn IMR4227
CCI 400
Hornady case, trimmed to 1.363"
COL 2.150"

Shooting off a bag at 100 with no wind produced the following average group size:



Im very satisfied with the rifle and after working out a large matrix of cartridges I think Ive got a good short range hog gun.

[Tim K]

That's a supersonic loading right? Any plan to suppress it?

[Rocket88]

Indeed, its SS: Muzzle V of ~2335 fps. I had not planned on using a suppressor, although having heard one over the weekend, I am in awe of how quiet they are. Sounds like a big air rifle!

That's a supersonic loading right? Any plan to suppress it?

[n8tive97]

I want to build one..... Nice job!

[Random]

I want to build one..... Nice job!

I can neither confirm nor deny the last piece of a puzzle arrives via Big Brown on Monday...

What did you use for sights?

[Rocket88]

I have a Nikon Pro-Staff 3-9 x 40 on the rifle now. For hogs Ive got a Nikon Omega 2-6.5 x 32 (a muzzle loader scope). Using a Nikon AR/.223 0 MOA mount.

[LariatBob]

Sounds like what I am building right now.
I am trying an ATI Omega poly lower.
How do you like the Stoner barrel?
Looks like it shoots well.
Congrats, any pictures?

[bca1313]

Sounds like a great rifle. I am working on a 300 build now.