Ideally I'd like to buy propellant because you don't have to register it over the counter here in Communist California. 45 LC is generally not loaded for hot rounds and anything I put through the bore BP or commercial should work without over stressing the max CUP's on the revolver or cylinder.Īll that said, is there a recommended BP or Propellant alternative anyone can suggest? A medium load? I'd be firing 180gn lead slugs. He indicated I have options because most. Spoke with Walt Kirsk (Yes, he picks up the phone personally) to get an idea of the powder and charge I should load. This is just to make noise and plink cans. I had read in the past these conversions should stick with BP loads. Picked up the Kirsk cylinder with loading door and ejection slide. 45 Long Cold cartridge converter for my Pietta 1858 Remington.