I have a S&W .38 revolver, the little snubby airweight hammerless. I got it this fall and have not had much of a chance to try it out. I took it to the range today and fired one shot. At this point the cylinder locked up and I can't open it. This gun has the child safety lock with the little key to lock the cylinder. I have tried unlocking it but that does not work. I suspect this lock mechanism has something to do with. So does anybody have any experience with something like this? I don't like fooling around with it with four live rounds in the cylinder.