I have a 6" M25-2 in .45 ACP that dates from 1975. It's extremely accurate and fun to shoot and, of the couple of dozen S&W revolvers I own, would probably be that last I'd part with if things ever came to that.

If the action is cycled slowly, either SA with the hammer or DA with the trigger, there are times when the cylinder stop will retract fully into the frame but then immediately pop back up before the cylinder has really started to rotate, engaging the notch it just withdrew from and jamming things up. Does anyone have any thoughts on a diagnosis and cure? I'm comfortable taking the sideplate off (haven't as yet on this gun) and doing a few slightly more invasive things, but have never done a detailed disassembly. Thanks.