Goose,
I've got a box of shells for that gun at home. I know that S&W made a revolver for this shell.I've got a Model 4 that's chambered for 41 rimfire. This revolver belonged to my Grandaddy. I've got the handmade holster that he made for it also. My Dad used to tell me about hunting with his Dad. If Grandaddy was going hunting this pistol was with him.
HWD