I have had the same problem with Hornady rounds crimped in the cannelure. In fact, it was that issue that started me on my path to reloading. Well, that and a complete inability to find anything chambered in .45 ACP, though that situation seems somewhat resolved.

Which leads me to my next (relevant) question. At the same time .45 ACP seemed to be unobtanium, powder was scarce on the ground as well. I did manage to find some Vhita Vouri, which seems unpopular in the US. In addition to the pistol powder, I was able to find some VV N160. Has anyone tried this as a load? Success stories?