Is the slide locking back after the last round?
Every time I've run too light a powder charge the slide won't lock back on the last round.
I won't crimp with the seating die at all for the 45 acp ,screw the seating die out more so it doesn't crimp and screw down the seating plug to get the right oal.
Use a lee crimp die and just crimp enough to take out the flare and chamber smooth.
