Dan Wesson Model 15 revolver in 357 mag. It was my first handgun ever and being a nube, I couldn't decide on a barrel length. The DW had interchangeable barrels so it seemed like the way to go. About one in every 18 shots of 357 mag would jam the cylinder from turning. Never a problem with 38 Spl. I would work the cylinder back and forth while working the cylinder and trigger until it came loose. I got to be pretty good at doing this. Then I would clean the cylinder and around the forcing cone then get the feeler guage out and make sure the cylinder gap was at spec. A real PITA. The last time I fired it I was in the desert just north of Mojave, CA. The cylinder jammed like it always did. I worked the cylinder, hammer, trigger like always but this time my thumb slipped off the hammer and I had an AD. Fortunately the muzzle was pointed down range. I was relieved that nobody was hurt. Then my buddy tells me I'm bleeding. I had been holding the gun in my left had working the cylinder while my right hand was working the hammer & trigger. The blast from the cylinder gap cut my left middle finger to the bone. I stuck my hand in an ice chest and my buddy drove me to the ER for some stiches. I got rid of the DW soon after that. With full disclosure! I didn't know at the time that the DW was not going to be my one and only weapon. If I had, I don't think I would have been so squishy on picking a barrel length. Now if I can't decide, I buy two guns.
Please excuse my rambling