I have a few Ruger Blackhawks and they are not that much more money. I have one Ruger that shoots .45ACP and .45Colt. The .45Colt can be loaded up to .44 Mag range if you wanted to, so called Ruger only loads as well. Some .45Colts were .454 diameter, many are .452 inch. I think the lead for the .45Colt has a little ridge at the top so it can be crimped at that point. This lead wouldn't be good for .45ACP as it is not crimped. If your reloading .45 Colt you may want the 4 die set instead of three die set, the forth die is the crimp die. The .45Colt has a fairly strong report, you will think 9mm is for girls after that!