I just finished cleaning about 30 pounds of 255 grain 45 Colt bullets. I put them in my toaster oven at 200 degrees with a triple layer of paper towels under them to soak up the lube (beeswax and alox). Then I washed them three times in gasoline using a parts brush to help clean them. The last time I washed with gas, I then put them into a small bucket with acetone and swirled them around, dumped them on a soft towel and let them dry for about half an hour. I then used the shake and bake method for coating them, baked them for 12 minutes at 400 degrees and they came out great. This was my first time using powder coat and I used Smoke's black powder. I am not sure that you need to do everything just as I did, but this worked for me. I know that some guys just re-cast them but a lot of the work was already done as far as casting and it seemed like a waste of time to do it all over again. Others may want to do it another way, but this worked for me and it addresses the gentleman's question.