Seating die too close to the case holder,,too far down.
sounds like ya crimped it too tight, then pushed the crimped bullet down too hard on the case.
Loosen the seater die way up,,Put an un-loaded case on the holder, and run the ram all the way up then turn the die down till it just touches the case, then back it off a half turn.(or more)
Now you can seat the bullet.
If you want a crimp, and I think you do if it's a lever action. After seating your bullets, turn the bullet seater pin way high so it won't contact the bullet, then re-set the die to crimp the case to the bullet..
Make sence?
Until you gain more time on the press, it's easier to seat and crimp in 2 different stages.
