Another thing you might want to consider and control is primer seating. Seat them to just that point where you can feel them bottom out in pocket. Don't over seat and crush if possible. For 50 some use a hand priming seating tool so you can feel them seat.
Also, consider a special die, M die that just expands the mouth just enough so the wad cutter sits square and eliminates shaving. The cowboy action shooters use them, called M dies from Lyman. Little extra operation but works good on lead bullets. My suggestion is seat bullets a hair past the mouth lip before crimping, using a very light roll crimp. Consistent crimp pressure is very important also. I purchased a press handle that worked off torque settings for crimping hoping that would do the trick, but another gadget that wasn't any better then normal operation.