Hey guys I have never had anything like this happen. Was testing a light recoil hand load for competition this weekend. Was doing a bill drill, recoil was very light anyway so didn’t feel anything weird. On my last shot gas blew out the sides scaring the piss out of me. After checking my hands I realized everything was still there I just had gsr all over them. The brass had blown in half and the base was really deformed. A little was gone. Nothing in the barrel but I knocked the base of the brass out the other half is still there. What do you think happened? Squib the shot before? I dont think it was a double charge because it would have probably over flowed. What does it sound like to y’all? And do you think I should have the gun inspected before shooting again?