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Old November 27, 2013, 03:13 PM   #8
FrankenMauser
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Join Date: August 25, 2008
Location: In the valley above the plain
Posts: 13,402
Quote:
Then there is the profile as in identifying the die as being different, it is a crimp die but I have to wonder what profile has to do with crimping.
It maintains the 'profile' of the cartridge.

The Redding Profile Crimp die does three things for straight-walled 'handgun' cartridges:
1. Supports the case walls.
2. Crimps.

I said three things, because the crimp is two stages. It starts as a mild taper crimp, but if you keep turning the die in, it transitions to a roll crimp.

It's nice to have, for some cartridges, but isn't a requirement.
I wouldn't buy one for .45 AR. And, I've never felt the need to buy one for .44 Mag. The standard roll crimp meets my needs.
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