IMHO, the PTX turned a great, fool proof powder dispensing system into a troublesome PITA. Damaged case mouths, stuck cases, inconsistent charge weights. Probably just me but I ran out of patience after a month or so and dumped the PTX for a standard expander die. No more problems I'll soon switch from 40 S&W to 9mm and since I have the .355 PTX I'll probably try it again.