Quote:
Originally Posted by Hondo44
All you have to do is "short shoulder" the chamber when reaming the chamber for 45 COLT. The case mouths would headspace on the chamber shoulder (like ACP cases) instead of on the rim. The Colt rounds would stick out of the Chambers .040" (also like ACP cases) and there would be no excessive headspace for the Colt rounds at the breechface.
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If your .45 Colt rounds are loaded like an ACP round (taper crimped), it might be safe enough, but a .45 Colt round with a conventional roll crimp that turns the case mouth into the crimping groove of a bullet might not be such a good idea.