I was at the range yesterday trying some loads using my Ruger Blackhawk .357 with 16 grains of 2400 under a 125 grain JHP. I was using new Starline brass and Winchester small pistol primers. I was shooting 5 rounds. After firing what I thought was the fifth round I checked the cylinder and saw that one primer was still intact, or so I thought, so I rotated the cylinder and fired again except nothing happened? I pulled the shells from the chamber and all had been fired and one shell still had most of the powder in it. In fact there was a grape size ball of the 2400 lumped together and the rest was just spilled granular power. I immediately pulled the cylinder out and sure enough the bullet was lodged in the throat of my revolver about 1/2 inch in. We took a dowel and punched it out. The only explanation that I can think of is that the primer misfired the first time it was hit and only ignited enough powder to make the bullet jump. And, I think that is why the primer looked like it hadn't been fired when I first checked it. Anybody experience anything like this?