I hope this will be a good enough substitute budget wise for me.
http://www.bravocompanyusa.com/BCM-S...m4-16socom.htm
I hope this will be a good enough substitute budget wise for me.
http://www.bravocompanyusa.com/BCM-S...m4-16socom.htm
All that is necessary for trolls to flourish, is for good men to do nothing.
Unfortunately, most of my data on the standard 14.5” Colt M4 barrels was lost due to a hard-drive crash. However, the accuracy results were basically the same as those of the Colt 16” M4 profile barrels. The M4/government profile barrels tend to show more variation in accuracy from barrel to barrel than the heavier profile barrels.
One such Colt 16” M4 profile barrel tested in the same manner as described in my original post of this thread produced three 10-shot groups from 100 yards that had extreme spreads of:
1.42”
1.19”
1.56”
for a 10-shot group average extreme spread of 1.39”. The mean radius for the 30-shot composite group was 0.44”.
Another Colt 16” M4 profile barrel produced three 10-shot groups from 100 yards that had extreme spreads of:
1.59”
1.55”
1.73”
for a 10-shot group average extreme spread of 1.62”. The mean radius of the 30-shot composite group was 0.54”.
All that is necessary for trolls to flourish, is for good men to do nothing.
Thank you very much. The data falls in line with my expectations.
Not that it makes a huge difference for me since I'm doing good to shoot about even a third as well as any of these barrels do, but it's useful objective information nonetheless.
These results are from one of the most accurate Colt 20” A2 government profile barrels that I’ve tested. Naturally, the barrel has a NATO chamber, chrome lining and a 1:7” twist rate. The barrel was free-floated with a KAC free-float handguard.
Three 10-shot groups of hand-loaded Sierra 55 grain BlitzKings were fired from the bench-rest set-up from a distance of 100 yards. The extreme spreads of those three groups measured 1.21”, 1.24” and 1.32” for a 10-shot group average extreme spread of 1.26”. A 30-shot composite group was formed using RSI Shooting Lab software. The mean radius for the 30-shot group was 0.40”.
Last edited by Molon; 08-26-10 at 18:27.
All that is necessary for trolls to flourish, is for good men to do nothing.
thanks for that...and i also love your posts. always informative. i see BCM now has 14.5" socom uppers in stock...hmmm
Last edited by rychencop; 09-05-10 at 02:49.
“If you want a guarantee, buy a toaster.”
I find the Socom barrels always a bit heavy but that's to me.
The most powerful weapon in the WORLD is the Marine.
Thanks, Molon.
We miss you, AC.
We miss you, ToddG.
Thanks for the informative post on Colt M4A1 SOCOM Barrel. It is both informative and helped create a good discussion of a barrel based on scientific data. Look forward to your next post.
Concise evaluation and much useful information, as usual!
I may have missed it, but do you have more of your barrel evaluations on-line? Have you done any on the current popular suppliers like Noveske, DD, and BCM?
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