GUN on the scratch and dent page of cmmg, vel and supressor q

Discussion in 'On Topic' started by thomor25, Jan 10, 2008.

  1. thomor25

    thomor25 I make money online....

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    if a 45 is fired out of an ar45 will it be supersonic or subsonic?
     
  2. 993kgt

    993kgt building an airplane whee

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    subsonic
     
  3. TheHunter

    TheHunter Unprofessional Lurker

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    Wouldn't it depend on what ammo is used?
     
  4. 993kgt

    993kgt building an airplane whee

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    no, if you load enough powder in a 45 casing to project the 230grain projectile at 1100fps, you will have case failure
     
  5. sprite

    sprite Active Member

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    Yeah. Something like a 185gr or even a 205gr +P is going to be super-sonic out of the longer barrels.

    Regular 230gr should stay sub.
     
  6. reman

    reman New Member

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    People tell me that all .45 is subsonic.
     
  7. thomor25

    thomor25 I make money online....

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    so an ar45 with like i dunno the blackbox on it will be quiet except the action cycling.
     
  8. sprite

    sprite Active Member

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    Probably true out of pistol length barrels.

    Gross generalization, but all other things being equal longer barrels = more velocity up to a point of diminishing returns. Depends a lot on the cartridge and powders. For examply... Buffalo Bore makes a .357 Mag load the chrono's at just under 1500fps out of a 3" barrel, but nearly 2300fps out of a 18.5" barrel.
     

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