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roundball vs sabot?

Discussion in 'Blackpowder' started by 1911, Dec 31, 2002.

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  1. 1911

    1911 Member

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    I remember seeing some data a few years back that showed the foot pounds of energy differance between rounball's,sabots and buffalo bullets.It seems like there was about 400 fp of energy more with the sabots and buff's.

    Can anyone provide me with the info I need?
     
  2. Mike Irwin

    Mike Irwin Member

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    Well, all you need to figure it out is the projectile weight and velocity at the muzzle.

    The forumla is:

    (velocity*velocity) * bullet weight / 450400 = foot pounds of energy.

    So, say we have a .45 ACP bullet, 230 grains, going 900 fps.

    That would be:

    900 * 900 * 230 / 450400 = 413.6 footpounds of energy.
     
  3. 1911

    1911 Member

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    Thats good info mike.

    The problem is that I don't know what the velosity is on a round patched 50 cal ball.
     
  4. Mike Irwin

    Mike Irwin Member

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    How many grains of black powder?
     
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