OBLJ

I have loades on a dillon 550 for 6 years. I step up to a 650 with a case feeder. When I puh foward to seat the primer, if pushed to hard I will force the 9mm shell through the shell plate. The seating post seams to come up to high. If I load normal works ok. But when you come to a stuborn primer I can push the shell through the shell plate. Never happend on the 550 unless it was a 380 in 9mm set up.