I own two .480's that I handload for.
My preferred load for both uses Starline brass, Cast Performance 410 gr. hardcast WFNGC bullets, Winchester large pistol primers, and IMR 4227 powder. All of these components will occasionally come up for sale on Midway or Natchez, etc., you just have to keep visiting their sites and jump on the items if the are available. Over the past 4 months or so, I have been able to lay up a good supply of components, hopefully enough to last me a few years. Good luck!!
