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Thread: BRT OPTIMUM Barrels

  1. #631
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    I'm really considering getting the 11.5 for my build and I already have an A5H1, would it still run well with that?
    Last edited by Goforth; 10-14-20 at 20:08.

  2. #632
    Join Date
    Mar 2011
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    Mid-West, USA
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    Quote Originally Posted by Goforth View Post
    I'm really considering getting the 11.5 for my build and I already have an A5H1, would it still run well with that?
    My 11.5 CQB barrel doesn't have any issues with the A5H2 and BCM rifle spring, but I usually am running 5.56 or stronger 223 ammo. It also passes lockback tests with some of the weaker ammo. Sample of one and all...

  3. #633
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    Feb 2019
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    Quote Originally Posted by opngrnd View Post
    My 11.5 CQB barrel doesn't have any issues with the A5H2 and BCM rifle spring, but I usually am running 5.56 or stronger 223 ammo. It also passes lockback tests with some of the weaker ammo. Sample of one and all...
    Good to know, thanks for the timely reply. I have some weights I can throw in the buffer as well if needed.

  4. #634
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    Sep 2020
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    Quote Originally Posted by 01svtL View Post
    How many here have chrono’d their barrels? A buddy of mine tried a Triarc barrel, which also is supposed to increase velocity, against a “normal” of the same length a year or so ago and saw very little difference.

    My friend chrono'd his and didn't see much if any difference between his 11.5 BRT barrel and another 11.5 barrel he had.

  5. #635
    Join Date
    Dec 2013
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    AZ
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    So I finally got out to the range to test the Spring Co White hot spring in my 16 MPR. I also was testing a Spring Co White in a BRT gas'd PSA 10.5.

    With the 16 MPR + White Hot: I got lock back on 4/5 wolf steel cased. Locked back fine on the M855 and 556 pressure 55gr HPBT frontier. The gun actually felt really good with this gas and spring combo and I am looking forward to shooting it in future matches.

    The 10.5 + white: Had lock back on 5/5 wolf steel and locked back every time with 55gr 556 frontier. Feels really good to shoot.

    I'll report back if I have any reliability issues but first impressions are really strong of the spring co buffer and extractor springs.
    "Just throw Krylon on it"

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