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CMMG 24" SS Bull Barrel 1:9 twist

Discussion in 'Rifle Country' started by Bevobud76, Nov 29, 2008.

  1. Bevobud76

    Bevobud76 New Member

    Jun 4, 2008
    St. Louis, MO
    Ive been lookin at one of these for a while, does anybody have any background info on any of these? Seems to be a pretty good pickup.
    Couple questions, hopefully somebody can help me out. The barrel is 24", what ammo would you preferably shoot? I would try out the 62gr 55gr bullets first. would 40gr be too small?
    Will the longer barrel affect the type of bullet I use?
    Last question, it's chambered for the 5.56, I understand the concept of the Wylde chamber with the .223s, but will I be able to shoot .223rds in the 5.56?

  2. Coronach

    Coronach Moderator Emeritus

    Dec 20, 2002
    1:9 twist should shoot most everything OK. You're in try-and-see what your gun likes territory.

    Barrel length will affect velocity, but not much else. If you're relying on fragmentation for terminal effect (as opposed to a ballistic tip) this will give you a longer reliable-fragmentation range.

    If it is a 5.56 chamber, you'll be able to shoot .223 out of it.


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