Tips for seating/crimping with carbide dies

llred · August 20th, 2009, 02:44 PM

Anyone have any tips for using an RCBS seating/crimping die on .45acp? I read the instructions that came with the carbide die set, but I am still a bit confused. Thanks in advance.

dukalmighty · August 20th, 2009, 07:44 PM

Heres how I set my die up,after belling the case mouth just enough that the bullet will fit inside the rim without shaving any lead when you seat it,I adjust the seat die to set the bullet at the OAL I want, then I back out the seating part and start turning down the die til it stops,let the press up then turn 1/2 turn and run the press back up then check the crimp,youi want to remove the nbell and crimp just enough to hold the bullet firm,after I think I got it I will insert the round in the chamber of the barrel,It should slide in and out with minimum resistance,if it's tight ,then adjust crimp a little tighter about 1/2 turn at a time.once you have it where you want it,tighten lock nut and with the finished round up in the die screw the seating part in until it stops on the bullet,

boscobeans · August 20th, 2009, 11:53 PM

Quote:

Originally Posted by dukalmighty

Heres how I set my die up,after belling the case mouth just enough that the bullet will fit inside the rim without shaving any lead when you seat it,I adjust the seat die to set the bullet at the OAL I want, then I back out the seating part and start turning down the die til it stops,let the press up then turn 1/2 turn and run the press back up then check the crimp,youi want to remove the nbell and crimp just enough to hold the bullet firm,after I think I got it I will insert the round in the chamber of the barrel,It should slide in and out with minimum resistance,if it's tight ,then adjust crimp a little tighter about 1/2 turn at a time.once you have it where you want it,tighten lock nut and with the finished round up in the die screw the seating part in until it stops on the bullet,

That's about it.. Works well for me as well..

bosco

heylin · August 21st, 2009, 12:27 AM

+1 again

automatic slim · August 21st, 2009, 12:59 AM

Dukalmighty has it right. The only thing I wanted to add was that on a .45ACP you want a taper crimp as opposed to the super tight roll crimp used on revolver rounds. Remember the cartridge headspaces on the mouth of the case, so trimming your brass to a uniform length is important both for the headspacing and the crimping.

llred · August 21st, 2009, 11:32 AM

Thanks for the help/advice guys. I loaded my first 10 cartridges last night. Going to do 190 more this weekend. I got my load just about perfect right now. going with 5.0 grains of bullseye with a 200gr. Hornady XTP JHP. I got some pretty good groupings yesterday with that. Started out with 4.0 grains and worked up to 5.0. The last three were inside and inch at 15 yards from a rest.

dukalmighty · August 21st, 2009, 03:10 PM

Good job,glad the info helped

August 20th, 2009, 02:44 PM	#1
llred Member Join Date: Apr 2009 Location: Texas Posts: 278	Tips for seating/crimping with carbide dies Anyone have any tips for using an RCBS seating/crimping die on .45acp? I read the instructions that came with the carbide die set, but I am still a bit confused. Thanks in advance.

August 20th, 2009, 07:44 PM	#2
dukalmighty VIP Member Join Date: Feb 2008 Location: texas Posts: 6,383	Heres how I set my die up,after belling the case mouth just enough that the bullet will fit inside the rim without shaving any lead when you seat it,I adjust the seat die to set the bullet at the OAL I want, then I back out the seating part and start turning down the die til it stops,let the press up then turn 1/2 turn and run the press back up then check the crimp,youi want to remove the nbell and crimp just enough to hold the bullet firm,after I think I got it I will insert the round in the chamber of the barrel,It should slide in and out with minimum resistance,if it's tight ,then adjust crimp a little tighter about 1/2 turn at a time.once you have it where you want it,tighten lock nut and with the finished round up in the die screw the seating part in until it stops on the bullet, __________________ I like Poetry,Long Walks On The Beach,And Poking Dead Things With A Stick

August 21st, 2009, 12:27 AM	#4
heylin Member Join Date: Oct 2008 Location: New Zealand Posts: 371	+1 again __________________ ------------------------------------------------ War is not about dying for your country, but making your enemy die for his. ------------------------------------------------

August 21st, 2009, 12:59 AM	#5
automatic slim Distinguished Member Join Date: Jul 2008 Location: The western edge of The Confederacy Posts: 1,222	Dukalmighty has it right. The only thing I wanted to add was that on a .45ACP you want a taper crimp as opposed to the super tight roll crimp used on revolver rounds. Remember the cartridge headspaces on the mouth of the case, so trimming your brass to a uniform length is important both for the headspacing and the crimping. __________________ "First gallant South Carolina nobly made the stand." Edge of Darkness

August 21st, 2009, 03:10 PM	#7
dukalmighty VIP Member Join Date: Feb 2008 Location: texas Posts: 6,383	Good job,glad the info helped __________________ I like Poetry,Long Walks On The Beach,And Poking Dead Things With A Stick

August 21st, 2009, 11:32 AM	#6
llred Member Join Date: Apr 2009 Location: Texas Posts: 278	Thanks for the help/advice guys. I loaded my first 10 cartridges last night. Going to do 190 more this weekend. I got my load just about perfect right now. going with 5.0 grains of bullseye with a 200gr. Hornady XTP JHP. I got some pretty good groupings yesterday with that. Started out with 4.0 grains and worked up to 5.0. The last three were inside and inch at 15 yards from a rest.

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