Sweet! I love mine too, and my other two .45 ACP wheelguns. In addition to the .45 ACP, I also load my own cast Lyman 452429 255gr. swc's over 6.2 gr. of Unique in .45 Auto-Rim cases. It effectively duplicates the original .45 Colt numbers, and shoots superbly out of my 22-4 (Thunder Ranch N-frame). I'm strongly considering one of S&W's new 1917's.
I guess if you're using auto-rim cases you wouldn't have this problem, but I found myself avoiding Hercules powders like Unique, because I found them to be rather dirty, and if I wasn't careful on ejecting the cases and FM clip, I would get powder residue under the ejector that could keep me from being able to load a new FM clip and get the cylinder into battery.
I didn't have this problem using Olin 231 or Scot powders. Sorry, I don't remember the load, but I think that I did use the sort of bullets you mentioned. I didn't cast them myself, but IIRC, I used to get them from Bull-X. They were hard cast 255 gr truncated cone - flat nose - not really SWC, and they dropped into the cylinder beautifully, and they fed like a dream in my 1911s, and they'd take a bowling pin off a table like nobody's business!
Mark