Crimp in middle of brass

[Marine24]

Any idea what could cause this? Doing an initial setup on a Lyman press and working to set up bullet seating die and OAL.

When OAL was 1.05, we didn't have a crimp present but when OAL was at 1.075, it was present.



Not sure if it is the stroke or something else not set correctly.

Welcome any thoughts or suggestions.


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[cstone]

Are you seating and crimping with the same die?

[Marine24]

Yes, Crimp die wrong?


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[cstone]

I know it can be done, but I was never able to get the crimp I wanted and the bullet seating smoothly out of the same die. If you have another space on the die head, seat in one and crimp in the last hole. That has worked for me.

Crimping is closing the mouth at the same time you are trying to slide a bullet in the case. If the crimp gets tight before the bullet is seated, something has got to give.

Lee factory crimp dies are pretty reasonable.

[brutal]

Might be worth looking at this Lee video for setting the seating/crimp die.

[brutal]

I have zero issues with Lee seating/taper crimp dies running .45ACP.

I have given up on the Lee FL sizing rifle dies and gone to RCBS.

I would guess the crimp is too tight and the shoulder is contacting the crimp die early. I only really know how the Lee dies work for that caliber.

[Marine24]

Thanks. I don't use a separate crimp die in my press and never came across this.

I'll just start over. The process in the video is what we did but must have something wrong.


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[Great-Kazoo]

Everything for reloading is a learning process. Having others to bounce ideas and what happened's makes it that much easier.

[Zombie Steve]

That ain't a crimp in your case... it's a buckle. My guess is too much crimp and trying to seat at the same time. I'd try crimping in a separate step.

[Hound]

For Hornady pistol dies.... Get the bullet seating close and then get the crimp fully set where you want it using an already expanded case (personally I only lightly crimp) by adjusting the body up/down on test cases. Then go back and adjust the seating depth. I think the others are correct..... Your current crimp is the problem, I've done it myself till I figured the above out.