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Sub sonic ammo

Discussion in 'General Firearms Forum' started by glocked1, Feb 13, 2012.

  1. glocked1

    glocked1

    104
    0
    Feb 2, 2011
    Kentucky
    Is firing sub sonic ammo through a non suppressed firearm any quieter than firing ammo that is over 1100 fps (roughly)?
     
  2. eracer

    eracer Where's my EBT?

    6,711
    2
    Apr 5, 2011
    Tampa, FL
    There are two components to the noise a firearm makes (three if you count the noise of the action.)

    1. Muzzle blast
    2. The sonic boom a supersonic bullet makes.

    A suppressor reduces the first, but does nothing about the 2nd.

    If you shoot a subsonic round you don't get the sonic boom.
     


  3. M2 Carbine

    M2 Carbine

    21,587
    5,027
    Dec 21, 2002
    Texas
    Yes it's quieter.
     
  4. ronin.45

    ronin.45

    11,488
    875
    Apr 24, 2008
    NE OHIO
    It's quieter, but it can be hard to notice without a can. The muzzle blast can drown out the sonic crack for the shooter. It would be more noticeable for people farther from the gun.
     
  5. FEDLEO

    FEDLEO Spread Out!

    4,772
    24
    Aug 13, 2006
    State of disbelief