RealGun
Member
I have done some resetting of dies, tests with FMJ and many samples of 200 gr Zero, swaged, .452 LSWC, and there is no question that the bullet is being swaged by the case during bullet insertion.
It's not the die, because the small portion of the bullet at or slightly above the case mouth, bell still there, is still .452, while the rest of the pulled bullet is .450-.451.
Continuing with the crimp step changes nothing except removing the bell. Pulling bullets after that step shows the same measurements as after bullet insertion, i.e. the FCD is not involved in the problem, at least now while at .451.
It looks like the extra Hornady dies I ordered for a separate setup, no FCD, will make no difference except for options in OAL, but the .452 expander plug replacing the .451 definitely should affect the swaging during insertion. I should have that part to try on Monday.
It's not the die, because the small portion of the bullet at or slightly above the case mouth, bell still there, is still .452, while the rest of the pulled bullet is .450-.451.
Continuing with the crimp step changes nothing except removing the bell. Pulling bullets after that step shows the same measurements as after bullet insertion, i.e. the FCD is not involved in the problem, at least now while at .451.
It looks like the extra Hornady dies I ordered for a separate setup, no FCD, will make no difference except for options in OAL, but the .452 expander plug replacing the .451 definitely should affect the swaging during insertion. I should have that part to try on Monday.