Crimping Question

wpcexpert · February 28, 2008, 11:33 PM

I'm currently reloading for the .38/.357. New to pistol loading. I've got the RCBS carbide 3 die set. The seaterdie Says "TC". Is a roll crimp better for pistol rounds? And with the taper crimp, how dou you know when there is enough crimp. Thanks. Sorry if this topic has been covered recently, I didn't see it.

Shawn

MADISON · February 28, 2008, 11:51 PM

Most people ROLL CRIMP.
I take the decapping stim out of the sizer die, re-adjust it and taper crimp all my handgun rounds.
Taper Crimping allows me not to worry about trimming cases.

somerled · February 29, 2008, 02:15 AM

I roll crimp the revolver cartridges, which headspace on the case rim, and taper crimp semi-auto cartridges that headspace on the case mouth. RCBS dies usually have good instructions on how to set up the dies. If not reloading manuals usually have some good advice on the proper amounts to crimp.

It is important to keep the cases a uniform length. If you don't, the crimp isn't going to be uniform and groups will open up.

freakshow10mm · February 29, 2008, 10:25 AM

I've never seen a 357 die with a taper crimp, always roll crimp.

Edward429451 · February 29, 2008, 10:35 AM

The TC means truncated cone meaning the type of seating stem provided with it. It still roll crimps though.

wpcexpert · March 2, 2008, 10:29 AM

Thanks guys. I htought I read in the die instructions that TC meant Taper crimp. I'll have to go back a re-read. Thanks for the info.

February 28, 2008, 11:33 PM	#1
wpcexpert Senior Member Join Date: February 28, 2008 Location: Central Arkansas Posts: 791	Crimping Question I'm currently reloading for the .38/.357. New to pistol loading. I've got the RCBS carbide 3 die set. The seaterdie Says "TC". Is a roll crimp better for pistol rounds? And with the taper crimp, how dou you know when there is enough crimp. Thanks. Sorry if this topic has been covered recently, I didn't see it. Shawn

February 28, 2008, 11:51 PM	#2
MADISON Senior Member Join Date: January 1, 2000 Location: Roanoke, Virginia Posts: 2,678	Crimping Question Most people ROLL CRIMP. I take the decapping stim out of the sizer die, re-adjust it and taper crimp all my handgun rounds. Taper Crimping allows me not to worry about trimming cases. Last edited by MADISON; March 1, 2008 at 10:46 AM.

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February 29, 2008, 02:15 AM	#3
somerled Senior Member Join Date: June 11, 2005 Location: eastern Kansas Posts: 603	I roll crimp the revolver cartridges, which headspace on the case rim, and taper crimp semi-auto cartridges that headspace on the case mouth. RCBS dies usually have good instructions on how to set up the dies. If not reloading manuals usually have some good advice on the proper amounts to crimp. It is important to keep the cases a uniform length. If you don't, the crimp isn't going to be uniform and groups will open up.

February 29, 2008, 10:25 AM	#4
freakshow10mm Junior member Join Date: January 23, 2008 Location: MI Posts: 1,398	I've never seen a 357 die with a taper crimp, always roll crimp.

February 29, 2008, 10:35 AM	#5
Edward429451 Junior member Join Date: November 12, 2000 Location: Colorado Springs, Colorado Posts: 9,494	The TC means truncated cone meaning the type of seating stem provided with it. It still roll crimps though.

March 2, 2008, 10:29 AM	#6
wpcexpert Senior Member Join Date: February 28, 2008 Location: Central Arkansas Posts: 791	Thanks guys. I htought I read in the die instructions that TC meant Taper crimp. I'll have to go back a re-read. Thanks for the info.