I had a 4.62" Blackhawk, using the Unique 10gr, 275LFN load. I changed the barrel to 7.5" before giving it to my son. Recoil was ok, but muzzle flip with the short barrel reminded me of my 44SBH. Got a 45 Bisley in 5.5" and what a dream. I can keep that load on a pie plate at 100 yards. 42 ounces is a little heavy, but sure made the difference for me.