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Author Topic: Question on the 40 S&W & 45 ACP  (Read 342 times)

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Offline yote10

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Question on the 40 S&W & 45 ACP
« on: January 24, 2007, 05:36:42 AM »
Starting to handload for the 40 S&W and the 45 ACP. Noticed in some of my loading manuals that one says to lightly roll crimp and another manual says not to roll crimp. Any suggestions would be welcome.
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Offline Almtnman

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Re: Question on the 40 S&W & 45 ACP
« Reply #1 on: January 24, 2007, 06:33:13 AM »
I taper crimp all my .45acp loads. The taper crimp is easier on the brass than the roll crimp.
Don't load for .40 S&W, so couldn't help with it.
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Offline superhornet

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Re: Question on the 40 S&W & 45 ACP
« Reply #2 on: January 24, 2007, 06:34:04 AM »
Taper only.....IMHO
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Offline iiranger

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explaination
« Reply #3 on: January 24, 2007, 07:53:43 AM »
.45 Acp headspaces on the mouth of the case. Roll crimping shortens the case and leads to fail to fire from weakened firing pin strike. DON'T. The taper crimp forces the sides in without shortening ...
Not sure about the 40 S&W. As I recall it is straight, no rim, and no shoulder, so I suspect it headspaces on the mouth too... luck
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Offline the jigger

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Re: Question on the 40 S&W & 45 ACP
« Reply #4 on: January 24, 2007, 09:02:46 AM »
what everyone else said about taper crimp for both 40s&w and 45acp.
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