Don't confuse the steels used in the .454 receivers, as opposed to the steels in the .45 Colt receivers. Obviously, the .454's operate at 65,000psi. A max .45 Colt load would probably be in the 45,000psi range. That's a BIG difference. But, the Rossi 1892's ARE strong guns. I own one in .45 Colt, & refer to Paco Kelly's load data for a hunting load. JD45