BCA?

My first experience:

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BCA .243 Barrel Nut Wrench

Bought a BCA .243 Win for a guest gun since I read some decent accuracy reports on it even though it has 1:8T. After fire forming some brass and bumping the shoulders back .003-.004, I started load work up using H4350 and 87 V-max. Anyway, groups are all over the place 2-4" so I started checking...
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I pulled the last shot (5 shots) in the attached photo yesterday.

I have messed with three other BCA's 243's owned by friends since and they all shot 1.5-2" groups (factory ammo) until I loaded for them and figured out what they liked which is to be 10-20 thou of the lands with 80-90 grain bullets, regardless of powder and primer.

PS: I have only messed with the AR10's in 243 three w/ the HBAR 20" and my 24" Lightweight SS with 8 twist guest gun.
 

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Hit or miss, along with AR stoner from midway, which is rebranded bca stuff mostly. I got a couple stoner barrels right now and the stainless grendel barrel looks and shoots fantastic so far, and the carbine 223 wylde shoots ok but haven't found the magic load yet. You can count on them being over gassed, especially with a can on.
 
Thanks guys, I'm dipping my toes into the 6.5 grendel pond on the cheap, ordered their complete stainless 20" upper.
Will post a progress report after a few range trips..
 
Bob_Atl said:
Thanks guys, I'm dipping my toes into the 6.5 grendel pond on the cheap, ordered their complete stainless 20" upper.
Will post a progress report after a few range trips..
Click to expand...
My 20" stainless barrel is shooting 1.25" groups at 200 yds with the cheap AAC factory ammo, sabre black tip, and otm, available at palmetto for 15 bucks a box.

I am having trouble duplicating that accuracy so far with 123 amax and any powder except 8208 which is leaving pretty good swipes suppressed when loaded at the charge weights that gives great accuracy.

I recommend an adjustable gas block if you're suppressed especially.
 
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