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  1. #1
    chp1911's Avatar
    chp1911 is offline Junior Member
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    Apr 2011
    Erie Pa.

    Cool >45 cal 1911 bore vs. .45 cal colt bore?

    anybody ouy there know the difference in acutual bore diameter diefferences/similiarties in these two firearms? Thanks in advance

  2. #2
    dosborn's Avatar
    dosborn is offline Member HGF Gold Member
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    Apr 2009
    Springfield, MO
    My understanding is they are the same diameter. The "long" is for the longer case. If this is a question about reloading, your answer is don't use over 230gr for the auto (200gr is what I use most). I think the 45LC bullets are designed for a roll crimp, but may work fine for ACP. Just work up from the bottom.

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