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Posted: 9/10/2010 4:23:38 PM EDT
Just did this to 2 cases trying to expand the case mouth using lee expander die. Seemed to require a little more force than normal then snap. Never done this before. Any ideas?

Link Posted: 9/10/2010 4:28:27 PM EDT
Way too much bell? Unscrew the expander top until it's almost out of the die, then raise a sized piece of brass up to the top and then screw the expander back down until it touches the brass, lower the brass then tighten the expander another 1/4 turn...you should be GTG.
Link Posted: 9/10/2010 4:29:57 PM EDT
Originally Posted By Dogue:
Way too much bell? Unscrew the expander top until it's almost out of the die, then raise a sized piece of brass up to the top and then screw the expander back down until it touches the brass, lower the brass then tighten the expander another 1/4 turn...you should be GTG.


yea just realized this after I posted it. Thanks just managed to wreck 2 of my 454 casull brass in the process
Link Posted: 9/10/2010 4:34:43 PM EDT
First one came out fine, the only thing i think i could have did isnt didnt go full stroke with the first one.....
Link Posted: 9/10/2010 4:48:34 PM EDT
My first thought was case length
Link Posted: 9/10/2010 6:09:16 PM EDT
Link Posted: 9/10/2010 6:56:34 PM EDT
I don't know what's happening to your cases, but whatever it is also messed up your camera.
Link Posted: 9/11/2010 12:22:03 AM EDT
way too much bell per above. unscrew the belling part of the die all the way up, insert a case into the shell holder, go full stroke, then screw down the belling assemblly until it stops, then raise the press handle, turn the belling stem down 1/4 turn, lower the press handle, etc etc until you have just the right amount of belling.

If you run out of adjustment, raise the belling stem all the way up again, loosen the die lock ring, turn the die down 2-3 full turns and try again
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