Finnally got the Dillon set up. And loaded 50 rounds. My OAL is jumping around a little. from 1.155 to 1.163? Do I need to trim my pistol brass? Also was using the 3.2 grains of titegroup. Load is real accurate but it won't lock the slide back on an empty mag. And I had a couple of short strokes. So Do I need to bump the charge up tenth or two? Or seat a bit deeper? Thanks for the help