What is the best (accurate) way to measure the velocity of an air rifle pellet?

November 8th, 2008

Since the speed of a air rifle pellet approaches the speed of sound this looks like a daunting task. Any suggestions on how I can accurately measure the speed of a pellet fired from an air rifle? Certainly a stop watch will not work as the speed of sound will be a cause of error.
Your help/suggestions are most appreciated.

Place a microphone equa-distant from the barrel of the gun and the target. Digitaly record the sound of the shot. Analyse the audio.

3 Responses

  1. users_net2150 Says:
    November 9th, 2008 at 10:19 pm

    take the rifle down to the bating range…or
    Speed: s = tn = Ö(l/v²) = t/lv
    Velocity: v = ln = l/ts = El/h = Ö(l/s²)
    References :
    The Solidity of States
    http://www.mrelativity.net/Papers/20/Albertini%20&%20Janicek.htm

  2. method Says:
    November 9th, 2008 at 10:47 pm

    use a digital chronograph, such as the one listed in the source window below….good for 56-7000 fps, which will definitely encompass the velocity of your air rifle.
    References :
    http://www.airgunsbbguns.com/Prochrono_Digital_Chronograph_p/ce13800.htm

  3. Anon Says:
    November 9th, 2008 at 10:57 pm

    Place a microphone equa-distant from the barrel of the gun and the target. Digitaly record the sound of the shot. Analyse the audio.
    References :

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