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Posted: 2/13/2017 4:49:14 PM EDT
[#1]
I had a BCM 14.5 and it grouped minute of barn for me. My Colt 14.5 barrel shoots much better. Not knocking BCM either but their barrels leave much to be desired. Only Faxon or Colt for me for now on.
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Posted: 2/13/2017 6:48:50 PM EDT
[#2]
I have a 12.5 and a 14.5 and both shoot less than moa with cold barrel. after the govt profile heats up its 2 moa.
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Posted: 2/13/2017 7:35:35 PM EDT
[#3]
we were on every side of a 12 inch square plate from 200yds. .....the hotter the barrel, the more erradic. how many moa is that.....12. Larue stealth barrel....18 in gets nice reviews. a hollowed out ghone book would be better than this pos
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Posted: 2/15/2017 9:13:14 AM EDT
[#4]
Quote HistoryQuoted:
I had a BCM 14.5 and it grouped minute of barn for me. My Colt 14.5 barrel shoots much better. Not knocking BCM either but their barrels leave much to be desired. Only Faxon or Colt for me for now on. High praise. We are honored and thank you! |
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Posted: 2/16/2017 11:08:46 PM EDT
[#5]
For process of elimination:
1. Make sure the barrel nut torqued properly, and that it is properly indexed. If the barrel nut is loose, then the barrel will shift, causing lack of grouping. 2. Check to make sure the scope is mounted correctly and tight. What type of scope mount, and what did you torque the screws to? A loose mount will allow the scope to shift, resulting in bad grouping. If using scope rings, did you gauge the for proper alignment, as if they are off then this could be stressing the scope, resulting in lack of grouping. 3. Try another optic or iron sights on it, and see what it will do. If the scope is bad, then it will not hold groups. Iron sights are solid, so try putting some on and shooting it just to eliminate the possibility of a bad or stressed scope. 4. What type of ammunition are you using? Have you tried different ammunition, if so what, and what were the results? CY6 Greg Sullivan "Sully" SLR15 Rifles TheDefensiveEdge.com (763) 712-0123 |
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Posted: 2/16/2017 11:24:38 PM EDT
[#6]
It sure sounds like somethings loose.
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Posted: 2/17/2017 2:54:27 PM EDT
[#7]
I second the recommendation to double-check your scope mounting. There could be some play in the mount, or the optic itself could be borked.
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Posted: 2/18/2017 3:24:57 AM EDT
[#8]
You are describing the exact symptoms of an improperly torqued barrel nut.
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Posted: 3/8/2017 1:32:33 PM EDT
[#9]
Exactly the same problem here as well. I first noticed that something was wrong while zeroing the BUIS @50yds. Shots were everywhere. I scoped it and 3.5" @50yds was the best I could do. I was using several different Hornady factory loads and M193. The scope on my second round of testing AFTER receiving it back from Bravo Company was my Leopold Mark IV 8-25x. I emailed them again and they sent me a photo of the group their "company marksman" that consists of four holes in a piece of cardboard. I asked for a replacement and they refused to give one. Any suggestions as to what I can do at this point to help increase accuracy?
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Posted: 3/8/2017 2:56:59 PM EDT
[#10]
Eyeball619
Is the fix to remove, inspect, replace, and retorque? |
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Posted: 3/8/2017 3:27:59 PM EDT
[#11]
Just bought 2 of the exact bbls (complete uppers sans handguards). Have had zero issues with establishing BZO (shooting irons) and target shooting. They weren't bought for precision but again, my groups are nice and tight.
Ammo was Fed XM193 (black box stuff). SS |
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Posted: 3/9/2017 6:53:17 AM EDT
[#12]
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Posted: 3/9/2017 2:32:03 PM EDT
[#13]
Must be nice. This has been aggravating as heck! You spend good money on a "top tier" product and their customer service treats you like an idiot.
Who else can you guys recommend for a 20" government profile A4 style barrel. I need it to have a pinned FSB already installed but can do any other work necessary (sight post, barrel nut/delta ring, etc). It must be chrome lined and hpt/mpi tested. I'm looking for a real deal duty barrel, something I can bet my family's life on. I thought Bravo Company would be it, turns out I was wrong. Thanks for any suggestions you can pass along. |
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Posted: 3/10/2017 2:22:13 PM EDT
[#14]
I purchased the exact same barrel from BCM and it shoots match grade bullets into 1.25" to 1.5" groups @ 100. 69 and 52 grain Sierra Match Kings to be specific.
I suspect your scope/mount have issues. |
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Posted: 3/11/2017 6:34:05 PM EDT
[#15]
Just qurious, why would someone want a non stainless 20" bbl? When I hear 20" I instantly think scope/range build. Other than cloning why not stainless ? Bcm's chrome lined barrels are not known for great accuracy. Some people get lucky but more often than not they seem average accuracy wise.
I've been researching bcms products since around 2012 and run a few of their 14.5 and 16 inch barrels myself. None have been anything to writem home about. Tough as hell for sure but I've always wanted more accuracy than they provided |
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Posted: 3/11/2017 7:29:04 PM EDT
[#16]
Rings with vertical split line must have bottom screws torqued before top screws. The bottom screws tie the rings to the base, then the top rings snug up the scope tube. If tops are torqued first then the bottoms may not tighten the rings to the mount/base no matter how tight you make them.
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Posted: 3/11/2017 9:58:17 PM EDT
[#17]
The fastest way to kill a barrel, over tighten the FS to distort the last inch of bore.
Barring this, make sure that the barrel nut is tight, the scope not wondering it's zero, and that if the forearm is not free floating the barrel, get your sand bags/forearm bench supports as far back as you can on the forearm towards the receiver. Short of that, non chrome lined production barrels take around 300 rounds to unify the rifling and stress relive the kept clean barrel. Also during the same time, any burs on say the throat and muzzle, should be cleanly knocked off by then (if not most removed when the barrel is cleaned correctly before its even shot). |
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Posted: 3/11/2017 11:07:46 PM EDT
[#18]
Agreed, except I have found the best place to support a non-freefloated barrel is in the middle of the handguard, not at the rear by the barrel nut.
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Posted: 3/12/2017 4:02:42 PM EDT
[#19]
The closer you support a non floating barrel via the hand guards towards the FSB/ guard end cap ring, the more input you are putting into the barrel to flex is during the shot.
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Posted: 3/12/2017 4:32:53 PM EDT
[#20]
Of all the variables involved here, by what process of elimination did you come to the conclusion it's the barrel?
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Posted: 3/12/2017 9:31:12 PM EDT
[#21]
Quote HistoryQuoted:
The closer you support a non floating barrel via the hand guards towards the FSB/ guard end cap ring, the more input you are putting into the barrel to flex is during the shot. https://cdn.shopify.com/s/files/1/1068/3076/files/AR15_Upper.gif?84914787374980441 |
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Posted: 3/13/2017 2:05:18 PM EDT
[#22]
Two scopes, two mounts. Same results
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