It's true you cannot load the 45 Colt to 454 performance except in the strongest of firearms such as the 5 shot Linebaughs. However, when run in the 30,000 psi range the 45 Colt is certainly no slouch. I have both a Rossi 45 Colt, 20" round barrel, and a Ruger Redhawk 4" 45 Colt. I run the same load in both, a 300 grain WFN from an Accurate Molds block over 23 grains of H110, It runs 1175 out of the Ruger and 1600 from the Rossi. Both guns like the load and cast from 50/50 WW/lino I've no doubt, though I've never had to try, they'll penetrate from one end of a bear to the other. The Rossi is so much easier to pack than my Marlin 1895, especially when I'm making multiple trips packing meat. On another note the only handgun that ever hurt me, and I'm no stranger to big bore handguns, was a Freedom Arms 454. One cylinder full and I was flinching so bad I had to go back to a 22 and work my way up to big bores and heavy loads over the course of 6 months. I find the 454 recoil to be fast, sharp and objectionable. I'll stick with my 45 Colt.