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Old January 30, 2012, 12:09 AM   #3
TXGunNut
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Join Date: January 16, 2010
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Posts: 2,851
I'm a bit lost myself but will address a few points. IME the 45ACP requires a light taper crimp. A roll crimp or no crimp simply won't do. OAL is determined by the chamber, not the magazine. There are some excellent posts by Uncle Nick on that subject so I'll not plow that ground again. 4.9grs BE sounds good but I prefer 5.5 of 231, either should cycle most 45's adequately.
I don't get picky w/ 45ACP brass, if it holds the primer, powder and bullet I'm good to go. Just sort by primer size and you'll be fine.
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