Tonight I changed the casefeeder over from .45 Colt to .45 ACP. The results were positive. If anything the acp case feeds much smoother then the Colt. It made my mirror setup unnecessary. BTW, no adjustment was necessary, other then changing over the adaptor. I loaded 100 rounds of my Lyman cast bullet. So far I have been pleased with the casefeeder. I had 2 or 3 cases not center over the primer feed, but this was easily corrected without damage to the cases. I will tell you I have been an off press resizing/depriming guy for a while. It keeps the primer feed clean, and I can resize on a single stage while watching TV.