Today while at Plum Orchard Lake Gun Range (WV), we witnessed a young boy's/Fathers S&W Sheriffs Special (357) destroy its self. with the first Federal Round in the Cylinder. All were lucky that were there and only the boys hand was left Stinging that did the firing.The revolver in question launched the barrel and bullet down range but left the portion of the barrel with the threads still in the frame. I advised the owner to take the empty cartridge and one other from same cylinder and batch of Federal 158 Grain JSP., rounds to send to Smith & Wesson for investigation. Since the Owner is under impression that the weapon has warranty still in effect. The Boy in question wasn't hurt other than a stinging hand, and the range was closed to collect the parts as they came to land. Any others have or had this kind of issue?