What velocity for sub-sonic?

Discussion in 'The Ammo & Reloading Forum' started by jdon72, Mar 15, 2010.

  1. jdon72

    jdon72 Member

    340
    Feb 3, 2009
    What velocity is the limit for ammo to be considered sub-sonic? How fast before it is over the 'sub-sonic' factor?

    J
     
  2. Alpo

    Alpo Well-Known Member

    Feb 3, 2007
    NW Florida
    The speed of sound, at sea level, is 1125 feet per second. If it is slower than the speed of sound, it is "sub sonic". Faster than the speed of sound, it is "super sonic".
     

  3. jdon72

    jdon72 Member

    340
    Feb 3, 2009
  4. Alpo

    Alpo Well-Known Member

    Feb 3, 2007
    NW Florida
    You're welcome.
     
  5. big steve

    big steve New Member

    622
    Aug 8, 2009
    Exactly.
     
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