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Thread: Dirty muzzle brake cause a fireball

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    Dirty muzzle brake cause a fireball

    Can "dirty" muzzle brake increase muzzle flash?

    I have a SCAR with a MB556K and it has quite a fireball now. I have the same brake on my BCM 14.5 Midlength and the fireball is about 1/4 compared to the SCAR.

    Can build up cause flash to increase? How do I clean it?

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    How long is the barrel length on the SCAR?
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    14.2 on the SCAR, 14.5 on the BCM.

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    That's interesting. I'd think that there'd have to be quite a bit of build up to alter the flash signature.

    I just scrap carbon off of parts like that with a dental tool and stainless steel wire brush.

    I want to run one of those parts in my stainless steel media tumbler one of these days to see if it'll take that hard carbon off.
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    No.

    It would be the same thing for hydrocarbon in a tailpipe of a car, which would cause a fire.

    Powder burns much slower, the only thing I experience, is the powder hitting my support hand when shooting.

    There are a few videos in low light where you can see particles actually bouncing of the target.

    I couldnt see it actually causing substantial flash though
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    The only thing that I can think of that might cause this is bore diameter variance between the two barrels.... (assuming the same ammo)

    If either of the barrels are button rifled, there can be variances, tight spots, wide spots, etc in the barrel's bore.

    I've seen this when guaging 30 bolt gun barrels. It can be quite significant.
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    Side question but related -

    Regarding the thread about the negatives of perm'ing a FH due to internal buildup: Are their certain designs or characteristics to look for in a muzzle device that would lend itself to be easier to clean if perm'd? I like the BC 1.5 but I'm afraid it's a steel trap for carbon...

    Can you soak one long enough in a solution to loosen what's cashed?


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    Quote Originally Posted by sadmin View Post
    Can you soak one long enough in a solution to loosen what's cashed?
    Not in anything I've found. CLP soaking seems to soften the carbon up a little. But nothing I've tried has ever removed carbon without physically fighting with it.
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    I've seen the KAC brake cause larger muzzle flash when caked up due to the small slits being fouled. But I wouldn't think that a brake with large ports could ever get enough carbon build up to make any difference.

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