So, a couple months ago I purchased one of the new Lee breachlock progressive presses. I’ve reloaded for about 8 years and have been using a Lee classic cast. I probably should have left well enough alone. I’ve loaded 300 blackout and 9mm on the press with only a couple of problems. I got a new set of the safety prime arms. Lets just say for the first two hundred rounds it dropped 35% of the primers, then it started working fine. I mis the priming arm every once in a while, but those are the only dropped primers. I’m still having problems with the universal case feeder popping cases out. It’s like the weight of the cases are to much to let the bottom case slide out without falling over or springing away from the slidder. So, last night I tried loading .45 acp and had a problem I can’t figure out. I’m loading pcbs and had problems with my OALs varrying from 1.255 to 1.285. With the 9mm and 300 blackout I loaded, the variance was only a few thousands. My powder coatings not the best, but it won’t account for what happened last night. I cleaned the lee seater die i was using, but that didn’t help. I pulled the shellplate, it was tight and clean. I pulled all the dies, they’re all lee by the way. Cleaned and reinstalled them. I made sure the sizer and fcd were the same depth touching the shell plate. I backed the seater out 3 full turns, cleaned and lubed the die thorouly, but still getting OALs all over the place. Shell plate doesn’t move. Powder through die doesn’t seem to be causing this either. I’m out of Ideas. I didn’t have problems with the othe calibers I loaded. I have no clue?