I want to know about the difference in cylinders of the 3 Colt single action .22 models. The Scout, the Peacemaker, and the later New Frontier models look similar, but what about the cylinders? Are they the same length, do any of them interchange? I have a Peacemaker, without the .22 Mag cylinder, and I would like to find one. I have looked at different cylinders at shows, usually not knowing the brand. I have studied the traits of mine, and bought a cylinder the other day, thinking I might get lucky, but I didn't. It was just a hair too long to fit in the frame, and the "star" where the hand engages it, is just slightly different. I haven't been on the Colt forum in years, so I just thought I'd ask here. I'm thinking that the cylinder I bought, might still be a Colt.