Author Topic: Crimping- seating question  (Read 469 times)

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Offline erickrschaefer

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Crimping- seating question
« on: August 18, 2005, 12:32:56 PM »
I am trying to load some rounds for a 475 linebaugh and am having problems during the seat and crimp step. The process is actually shaving lead from the bullet and pushing the lube up on the base of the bullets above the case. I have loaded thousands of 44 and 45 colt rounds with no such problems. No matter how I adjust the die (RCBS) i get the same results. I am thinking of puchasing a new seat die and a new crimp die and seperating the two steps. Any advice out there?

Thanks,
Erick

Offline ricciardelli

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Crimping- seating question
« Reply #1 on: August 18, 2005, 12:43:45 PM »
Put a slight bell on the case mouth...

Seat the bullet...

Crimp the bullet...

Offline Redhawk1

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Crimping- seating question
« Reply #2 on: August 18, 2005, 01:05:12 PM »
Quote from: ricciardelli
Put a slight bell on the case mouth...

Seat the bullet...

Crimp the bullet...



100% agreed.  I never seat and crimp in the same operation. And a slight bell will allow the bullet to go in the case without shaving the bullet.  :D
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Offline erickrschaefer

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Crimping- seating question
« Reply #3 on: August 18, 2005, 01:30:52 PM »
Guys I appreciate the advice but I am putting a slight bell in the case mouth. That is definately not the problem. I am just going to seat and crimp in seperate steps using a roll crimp die.

Thanks

Erick

Offline PA-Joe

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Crimping- seating question
« Reply #4 on: August 18, 2005, 02:46:26 PM »
You do not need a new seating die. Just pack it off so that it does not crimp. Buy a Lee Factory Crimp die and do that as a last step.

Offline Redhawk1

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Crimping- seating question
« Reply #5 on: August 18, 2005, 04:50:11 PM »
Quote from: PA-Joe
You do not need a new seating die. Just pack it off so that it does not crimp. Buy a Lee Factory Crimp die and do that as a last step.


I have several Lee factory crimp dies and they work great. :D
If  you're going to make a hole, make it a big one.
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Offline Lawful Larry

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Crimping- seating question
« Reply #6 on: August 31, 2005, 12:35:03 PM »
Quote from: erickrschaefer
Guys I appreciate the advice but I am putting a slight bell in the case mouth. That is definately not the problem. I am just going to seat and crimp in seperate steps using a roll crimp die.

Thanks

Erick


Hey Erick,
You may have your seat/crimp die not set up properly.  First seat your bullet to the length you want.  Then back off the the seating adjustment screw.  Now back off the die all the way so you can run the cartridge into the die.  Now lower, screw, the die back down on the cartridge till it stops.  From this point on you will be setting the crimp action of the seat/crimp die.  Do the adjustment a little at a time.  At this point you must be very careful.  Once you have the right crimp lock the die in place.  Next screw the seating adjustment back down on the bullet and lock it in place.  

I think you may have had the crimp adjusted so the shell was being crimped too soon as the bullet was being seated.  I hope I have made this clear to you.  It is an art to get a seat/crimp die adjusted just right.  I do a lot of handgun, straight walled, cartridges and learned this the hard way.   :wink:
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