I threw that out there simply because I happen to have 200 rounds of ammo, some of it is even loaded with Keith style bullets and a few with red tipped Hornadys. Of course, in the Contender, the round headspaces on the case mouth and probably a little on the extractor. I reviewed several sources last evening and found, as I suspected, that the Gap, ACP, and Win Mag all have the same rim measurements, and I saw that the Win Mag is just a tad shorter than the 45 Colt. A Redhawk in 454 Casull that was cut for moon clips would shoot all of it in stride. Who knows, we might even get a 455 Webley in there. Currently, the 45 Win Mag is a moot point as there is very little ammo out there. It is an option if one handloads, as brass is available from Starline. A double action revolver that fires six different cartridges intrigues the hell out of me. Bob!!!!! 8)