Started with published and experimented from there. Sierra has a 85 grain SP that I’ve been shooting for years with great success. Small rifle primers and Winchester 296 or H110. 17.5 grains of H110 behind the 85 Sierra gives me about 1900 fps from the 7 1/2 inch Ruger and just over 2200 fps from the carbine. My preferred primer is the CCI 450 magnum small rifle primer. Hope that helps.
It should. I’m new to the cartridge and haven’t got any dies for it yet, but your load looks interesting. I’m curious about your Rugers. I remember when Ruger came out with that Blackhawk. I think it was called the SRM in honor of Bill Ruger’s deceased son. I remember reading about a problem with flame cutting on the guns forcing cone. Did you have any problem with that?