...to show you guys what happened Friday at the range. Took one of my carbines out shooting and had a round not chamber completely. Not realizing this, I squeezed the trigger and the extractor went flying into the stratosphere, the ejector bent, and the base plate on the mag blew out. I haven't taken the carbine apart yet, but will tonight. I have never had this happen before with any firearm, but have seen it done. I recovered the suspect case, and the case blew apart at the base and you can see the web of the brass. It really made me mad, as I had just had it reworked with new parts. The headspace was correct, as I did check it with my gauges. I did notice a small crack on the bolt at the lug. I'm having it magnafluxed as soon as I can get it cleaned up, and will also have the receiver checked for any stress cracks. I know it didn't seat fully into the chamber, because of the way the brass is. Anyone have this happen to them before?