There is a local (Layton Utah) one man shop called Precision Cast Bullets that makes Hi-Tek coated cast lead bullets, I picked up a small quantity of bullets to test from him. The .45 and .38 I've reloaded for CAS with bullets I bought from him have worked fine. The ones I'm going to try are .308, 0.989 length and 175 gr
I use Tite Group to load all of my CAS. I also have Varget as an option.