Correct Crimp?

poline · March 31, 2011, 02:32 PM

A picture is worth a thousand words and lostinperiphery's picture of his crimped 38spl, the 15 post from the top, first page, in his thread (Unique + 38spl sticking in barrel Lostinperiphery, started 2/18/11) is just right for me to use to ask the following question: of the four rounds given in his picture two are crimped in the middle of the cannelure and the other two are crimped as to completely cover the cannelure, on the bullet side. So, in the forum's opinion which of the two examples is, in theory, the best position to crimp a round?

THANK YOU!

PA-Joe · March 31, 2011, 03:19 PM

Into the crimp and remember that you may be able to spin the bullet inside the case but it should not pull out or push in.

Walkalong · April 1, 2011, 09:21 PM

If you can spin the bullet you either never had good neck tension or ruined it crimping. Either way it is not good.

Crimp into the middle of the cannelure where it is the deepest.

Swindler1 · April 2, 2011, 12:35 AM

What ever the maker of the bullets says the OAL is thats where the crimp goes. Trim your brass to specs if needed,set the OAL and apply crimp.

mikld · April 2, 2011, 01:46 PM

When setting my seating depth, I set it so the rim is level with the top edge of the cannalure, and same with a crimp groove in a lead bullet. The roll crimp will push (roll) the brass slightly lower into the cannalure. It doesn't make a lot of difference though, just do them all the same...

March 31, 2011, 02:32 PM	#1
poline Senior Member Join Date: January 27, 2009 Location: Richmond,Va Posts: 256	Correct Crimp? A picture is worth a thousand words and lostinperiphery's picture of his crimped 38spl, the 15 post from the top, first page, in his thread (Unique + 38spl sticking in barrel Lostinperiphery, started 2/18/11) is just right for me to use to ask the following question: of the four rounds given in his picture two are crimped in the middle of the cannelure and the other two are crimped as to completely cover the cannelure, on the bullet side. So, in the forum's opinion which of the two examples is, in theory, the best position to crimp a round? THANK YOU!

April 2, 2011, 01:46 PM	#5
mikld Senior Member Join Date: February 7, 2009 Location: Southern Oregon! Posts: 644	When setting my seating depth, I set it so the rim is level with the top edge of the cannalure, and same with a crimp groove in a lead bullet. The roll crimp will push (roll) the brass slightly lower into the cannalure. It doesn't make a lot of difference though, just do them all the same... __________________ My Anchor is holding fast!

March 31, 2011, 03:19 PM	#2
PA-Joe Senior Member Join Date: June 9, 2010 Location: NEPA Posts: 661	Into the crimp and remember that you may be able to spin the bullet inside the case but it should not pull out or push in.

April 2, 2011, 12:35 AM	#4
Swindler1 Member Join Date: December 25, 2007 Posts: 38	What ever the maker of the bullets says the OAL is thats where the crimp goes. Trim your brass to specs if needed,set the OAL and apply crimp.