45 GAP ammo

Discussion in 'XD-45ACP Discussion Room' started by Lama12, Oct 12, 2006.

  1. Lama12

    Lama12 XDTalk Newbie

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    Can you use GAP ammo with my ACP. I new to guns, and just bought some 45 GAP hydroshock. Thanks
     
  2. demon

    demon XDTalk 500 Member

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    NOOOOOOOO
    OAL is too short.
     
  3. Lama12

    Lama12 XDTalk Newbie

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    Oal???
     
  4. demon

    demon XDTalk 500 Member

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    Over All Length

    The .45 GAP is approximately the same length as the .40 S&W. The .45 ACP is longer. Your bullet won't be positioned in the barrel correctly. The brass is shorter and won't go to the end of the chamber leaving the bullet in the chamber instead of in the barrel. Could result in some bad things happening.
     
  5. Lama12

    Lama12 XDTalk Newbie

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    So I can only get "ACP" ammo???
     
  6. Palmguy

    Palmguy XDTalk 3K Member

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    Yes.
     
  7. JD McDorce

    JD McDorce XDTalk 1K Member

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    Technically, it is due to the case length being too short rather than the overall length. Straight wall pistol calibers use the case mouth to properly position the cartridge in the chamber. Using a 45 GAP cartridge in a semi-auto chambered for 45 AUTO can result in either the cartridge being positioned by the extractor (which is neither good for the extractor or barrel) or the cartridge being seated too deep in the chamber (which likely means that the extractor is no longer engaged with the case, meaning no extraction, and the risk that the primer is positioned too far forward to be struck properly by the striker). The shorter OAL does present some potential issues regarding feeding.

    Since the OP refers to "hydroshock" <sic>, one could assume the ammo was purchased for defensive purposes. Even if a 45 GAP round functions, reliability would be a MAJOR concern.

    While 45 ACP is fairly common nomenclature in this forum, most ammunition manufacturers use "45 AUTO" on the boxes and on the headstamps.
     

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