Adjust Crimp Die

Assuming brass with the same head stamp and age are used will the crimp stay the same if different bullets are used?  Seems like it would.  This specifically has to do with 45 ACP and using Dillon dies.

Pretty much--it depends on if the brass is the same length.

Throwing different bullets into the mix does change things if you use a lot of crimp.  If your crimp is .470 it probably doesn't change.  If you have a .467 crimp and you are switching from a 185 JHP to a swaged 185 LSWCHP, the crimp will probably measure even tighter with the swaged lead because it was deforming the bullet.