I've never been in the "bulky powder" fan club. I use what shoots best. Period. If that's a tiny charge of fast powder in a big case, so be it. If that's a powder that fills the case more than halfway....that's a bonus.
With my Dillon (which is completely different from yours) going too fast at certain moment can jostle the primer. Have you tried slowing down a bit right at the point where the primer bar is picking up the primer?
With my Dillon (which is completely different from yours) going too fast at certain moment can jostle the primer. Have you tried slowing down a bit right at the point where the primer bar is picking up the primer?