Saw this on another gun forum..... Guy on our squad at Rio Salado from the Dillon Precision crew. Super cool guy, had a blast all weekend. Then the last stage of the entire weekend. this happened. Best we can tell it fired out of battery. He is OK. In a nutshell, the gun went bang before the slide was all of the way forward, so not all of the energy was focused on a) propelling the bullet out of the barrel and b) pushing the slide backwards. The exploding charge went "freedom!" and found that the path of least resistance was elsewhere. Which was bad on the good/bad scale.