Choctaw
Member
The issue with '.45 Colt Rifle' loads is... they exceed the pressure limits established for the .45 Colt, period. Walkalong is correct... it's the same load, it just goes faster out of the rifle barrel. There is some debate over running Ruger-only .45 Colt loads in some lever-actions, I've raised it myself. If you are trying to get to .45 Colt Magnum loads, do yourself a favor and just buy a .44 Magnum.
The 1892 action will handle Ruger-only loads all day long without a hiccup. I have Rossi 1892s in barrel lengths of 24", 20" and 16". The 45 Colt properly loaded absolutely sings from these rifles and will handle any critter in the Lower 48.