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What determines a bullet's grouping?

  1. Apr 10, 2012 #1
    What, other than recoil, the user's unsteady hands and gravity, causes bullets to impact different places on the target?
     
  2. jcsd
  3. Apr 10, 2012 #2

    mfb

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    Staff: Mentor

    Things which might influence the bullet:
    - Air conditions (wind, ...)
    - Imperfections in the ammunition
    - maybe the temperature in the weapon (as it can expand parts of it), which can increase during its use

    Gravity should be the same for all bullets.
     
  4. Apr 10, 2012 #3
    Why is velocity often said to increase accuracy? Because it can go further before being blown off course or dropped?
     
  5. Apr 12, 2012 #4

    mfb

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    Higher velocity -> shorter flight time for the same distance.
    It reduces the time for air and gravity (and probably other effects) to modify the path.
     
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