Die adjustment ?

ChetStafford

I have been loading rifle rounds for 10+ years. I recently decided to start reloading my pistol rounds 357mag I cant get the crimp udjusted correctly. I am getting way to much crimp so much that is cutting into the bullet.

I backe the die off a 1/4 turn at a time until I get no crimp and then tunrn it in until the round will go into the cylinder but that is when I see the casing cutting into the bullet

Am I maybe belling the case mouths to much? Then having to use to much crimp to get the case straight again?

perry shooter

Hello I would invest in a taper crimp die. The problem with most factory dies is they are roll crimp and a case length difference between 2 cases of .010 will result in one case not completely removing the mouth bell from the belling die to one that is over crimped and deforming bullet.Remember you are trying to push the bullet down and crimp at the same time [xx(][:(!][:(] With a taper crimp you seat the bullet with one die and taper crimp to crimp about .002 smaller then the case 1/4 inch below the mouth. This works MUCH better.

ChetStafford

Thank you for the information. I will get one ordered tonight

dcs shooters

Take a look at the Lee factory crimp dies [;)]

336marlin

The cannelures on jacketed bullets and the crimping groove on cast bullets are fairly wide. The timing between the seating stem, crimp shoulder, and ram bottoming out can be set to coincide with a short case at the lower limits of the cannelure. This will allow for the variation of case lengths encountered so that the longer ones can "bite" into the cannelure groove instead of bullet jacket.

Hawk Carse

If you are shooting jacketed or cast revolver bullets with a cannelure or crimp groove, it should be possible to adjust the seating die to crimp as it seats. A quarter turn is too much, just tweak it a little at a time, maybe half a flat on the locknut - 1/12 turn.

If you are shooting smooth sided plated bullets, then you need a taper crimp die.

reloader44mag

quote:Originally posted by csjs1194
I have been loading rifle rounds for 10+ years. I recently decided to start reloading my pistol rounds 357mag I cant get the crimp udjusted correctly. I am getting way to much crimp so much that is cutting into the bullet.

I backe the die off a 1/4 turn at a time until I get no crimp and then tunrn it in until the round will go into the cylinder but that is when I see the casing cutting into the bullet

Am I maybe belling the case mouths to much? Then having to use to much crimp to get the case straight again?
My opinion is we need to know what make/type bullet you are using to address your question/problem.

elubsme

turn it in until the round will go into the cylinder
[/quote] ARE YOUR CASES TOO LONG? If the slightly crimped cartridge won't chamber Maybe you are folding over a case that needs trimming. Eddie