I have an 8" twist barrel installed on my Stevens 44 1/2 that I used when I used to shoot BPCRS matches. I shot my best score on rams using that rifle shooting a 290 grain bullet and Swiss black powder. I hit 9 out of 10 rams and all 9 fell. The rams are at 500 meters. I also have a Hepburn with a 32-40 barrel installed on it and a 32-40 barrel for one of my CPA 44 1/2's and an original Winchester 1885 32-40. I like the cartridge especially now that I have had surgery twice on my right shoulder.