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45 GAP ballistics

Discussion in 'The Bull Dawgs Club' started by David_Ely, Feb 22, 2010.

  1. David_Ely

    David_Ely GAP'r

    Jul 3, 2008
    Okemos, MI
    I was just comparing the ballistics of Speer Gold Dot ammunition between the 45 GAP and 45 ACP. The ballistics listed for the GAP were thru a 4" barrel (same as a G38) and the ballistics for the ACP were thru a 5" barrel. The surprise was that GAP has more muzzle energy than the ACP even with the shorter barrel. You have to go into the ACP+P before it can finally beat the GAP.
  2. 9mmdude


    Sep 8, 2001
    In a week or so I hope to get my chrono running. I have some various 45ACP and GAP loads to run through. No Gold Dot however. I will post my results. The 4 inch vs. 5 inch GAP vs. ACP is very interesting.