I am loading on a Dillon 650. .38's. Had some failures to fire. Had good firing pin strike.
Started looking, and some of my loads had good firing pin strikes.... before they had been fired.
Noticed that sometimes the decapper is pushing out the old primer, and then pulling it back in. I changed out the pin for a new one, and polished it up, too.
Only happens on the .38's, not on the .357's. Same dies.
I thought it may be old cases, and loose primer pockets, but that doesn't seem to be it. Could it be too tight of pockets?
Has anyone else had this happen?