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Question about solid copper bullets in .224 diameter

Discussion in 'Handloading and Reloading' started by Grey Morel, Dec 6, 2009.

  1. Grey Morel

    Grey Morel Well-Known Member

    I have been told that solid copper bullets have different rate of twist requirements because the dimensions are different from lead core bullets of the same weight.

    With this in mind, will a 1-14" twist of a 22-250 stabilize a 45gr solid spitzer? Specifically I'm looking at these Barnes Solids.
  2. rcmodel

    rcmodel Member in memoriam

    Last edited: Dec 6, 2009
  3. Grey Morel

    Grey Morel Well-Known Member

    I have also been told that velocity plays a role in what twist is needed to stabilize, IE, the faster the velocity the lower the minimum twist.

    The 22-250 in question has only a 20" barrel, and Banes load data (thanks for posting that!) uses a 24". Will this have any effect?
  4. rcmodel

    rcmodel Member in memoriam


    It would with heavier bullets that would be marginally stable to begin with.

    But the 45 grain is not one of them.

  5. Grey Morel

    Grey Morel Well-Known Member

    OK, thank you for your help!
  6. Brillo

    Brillo Well-Known Member

    Yes, the ability to stabilize a bullet is a function of both the twist rate and the muzzle velocity. Therefore a longer barrel, all else equal, will stabilize a longer bullet than a shorter barrel because the muzzle velocity should be greater. It is often the case though that if you are near the max muzzle velocity you will need to select the proper bullet length for a given twist rate. In general, a solid copper bullet should more easily stabilize in a slower twist barrel than a jacketed bullet of the same length because the jacketed bullet will weigh more and have a slower muzzle velocity with a given powder load.

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