Well, I have just returned from the range where I tested my first batch of reloaded .45 ACP. I have discovered I have about 500 rounds of unfireable junk. Looking at the product of my first reloading experience, I can tell what the problem is.......the top 1/3 of my brass is "belled" (right word?) too much. They don't seem to want to feed and allow the weapon to go into battery. When I was going in full production, I measured every 10th completed product with a digital micrometer, and everything seemed to measure out within tolerances. I used the factory crimp die to finish off my reloads. I have absolutely NO problems feeding factory ammo. Questions: 1) Is the tolerance of the barrel too tight? 2) Can I safely resize loaded rounds? 3) Would I be better off "demanufacturing" the whole batch and start over? 4) What degree of screwed am I? As ususal, I am grateful for your expert advice. Your faithful student, Screwed Scooter in Des Moines.