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Has anyone ever experienced Pellet Spiral towards the target?

Discussion in 'Anything Airgun Related' started by erifle, Mar 9, 2008.

  1. erifle

    erifle Active Member

    Messages:
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    Hi
    Has anyone ever experienced the phenomenon, through a good riflescope, of a pellet apparently spiralling towards the target? Surely if this is a real effect it can reduce accuracy? Is it a real phenomenon or just an optical illusion?

    Would be interested in your experience and thoughts / theories on the pellet spiral effect. If it’s a real effect – can we do anything to minimise it?
    <!--[if !supportEmptyParas]--> <!--[endif]--><o:p></o:p>
    Some background below:
    Ballistic Harmonic Spiral (Pellet Spiral)
    Pellet Spiral is the phenomenon occasionally observed through a telescopic sight of “recoilless” air rifles where the pellet is seen to spiral towards the target
    The observation sometimes seen as counter intuitive often considered an impossibility and occasionally attributed to movement in the rifle after the pellet has left the muzzle – rather than the trajectory of the pellet its self.
    Pellet Spiral is in fact a real effect associated with spin-stabilized bullets acted on by a moment of force known as the “Magnus Moment” (See Google for detailed info) and in complete agreement with the laws of physics!
    Pellet spiral may not be observed in every pellet fired from a rifle. This often contributes to the perpetuated myth that it’s not a real effect or is an optical illusion. This is misleading……………………..
    Full thoughts on this can be seen at http://www.erifle.co.uk/pelletspiral.asp
    Any contributions will be credited to you
    Thanks
    erifle

     
  2. topcat

    topcat Posting Addict

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    i have seen it a lot but never affected the accuracy
     
  3. topcat

    topcat Posting Addict

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    i have seen it many times but it didnt affect the accuracy
     
  4. a1gunner

    a1gunner Pro Poster

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    Location:
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    if you can make one side of a pellet hevier than the other then as it spins the heavy half will want to move outwards so you will get a massive spiral. this will affect accuracy:D
     
  5. steve410

    steve410 Big Poster

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    OOOOOHH AAAARRRRR I've come over all dizzy now :p
     
  6. springboy

    springboy Engaging Member

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    Location:
    Romford Essex
    If you're hitting your targets,don't think about it!:D
     

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