Accuracy Evaluation of a Bravo Company 14.5” Barrel

[militarymoron]

75grtppu.jpgGreat info, Molon. Good to see you posting here again. Just thought I'd add some more data to this thread since I was at the range today, and it's relevant to BCM 14.5" barrels.

BCM KMR upper with ELW fluted 14.5" barrel
Ammo prvi partisan 75 gr HPBT match
distance 100 yds
optic: nightforce 2.5-10x
front bipod, rear bean bag

[Hank6046]

Great info guys, I appreciate it.

[thecolter]

Welcome back! Good to see these posts again!

[RegisteredTM]

Not bad, BCM... Thanks for the informative read

[Molon]

I''d REALLY like to see this identical test done using the
same weapon and shooter with some quality 77 grain ammo .

Some hard data on how much the groups are affected would be great .

The barrel used in this evaluation shot slightly better with my hand-loaded 55 grain BlitzKings than it did with my hand-loaded 77 grain loads, but unfortunately, the targets for the 77 grain loads were torn-up by my cocker-spaniel.







....

[BufordTJustice]

The barrel used in this evaluation shot slightly better with my hand-loaded 55 grain BlitzKings than it did with my hand-loaded 77 grain loads, but unfortunately, the targets for the 77 grain loads were torn-up by my cocker-spaniel.







....

That's funny. I mean, having your hard work torn to shreds isn't funny. But the picture is worth a thousand words and made me chuckle.

[Molon]

Not exactly apples to apples but in Molon's evaluation of 8 different Noveske barrels there is a lightweight profile accuracy test in there. Compared to the midweight Noveske barrel you do end up losing a good bit of accuracy potential.

Noveske 14.5” “Skinny” Barrel




The Novekse 14.5” “Skinny” barrel was tested while wearing a Centurion free-float rail. For this barrel, I fired eight 10-shot groups in a row from the bench at a distance of 100 yards using match-grade hand-loads. The extreme spreads for those eight groups were as follows:

1.78”
1.89”
1.68”
1.71”
1.81”
2.12”
1.60”
1.84”

for an average extreme spread of 1.8” and a composite mean radius of 0.55”.



....

[Cobrasks]

The barrel used in this evaluation shot slightly better with my hand-loaded 55 grain BlitzKings than it did with my hand-loaded 77 grain loads, but unfortunately, the targets for the 77 grain loads were torn-up by my cocker-spaniel.

....

That's an interesting as well as humorous result .

Given the BCM's twist rate most experts would
have us predict the opposite .

[KingCobra]

I'd love to do a test like this with my 16" bfh barrel, my first time out with it produced 6" @100yd groups with PMC x-tac, and an eotech. Minute of man is good enough for me but it worries me I have a bad barrel, or had a very bad range day. My colt and eotech I can produce 1.5-2" groups with the same lot of ammo.

[BufordTJustice]

I'd love to do a test like this with my 16" bfh barrel, my first time out with it produced 6" @100yd groups with PMC x-tac, and an eotech. Minute of man is good enough for me but it worries me I have a bad barrel, or had a very bad range day. My colt and eotech I can produce 1.5-2" groups with the same lot of ammo.

Is it in a BCM assembled upper?