RPM formula

Discussion in 'The Basics, Starting Out' started by daveosok, Aug 24, 2002.

  1. daveosok

    daveosok Guest

    What is the formula for caluculating RPM for a certain twist and velocity?
     
  2. CatShooter

    CatShooter Well-Known Member

    Messages:
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    May 8, 2001
    Divide the number 12 by the twist in inches, take that answer, and multiply by the muzzle velocity (fps), and multiply by 60.

    The answer is in "RPM"

    CatShooter.
     

  3. daveosok

    daveosok Guest

    Thanks Cat