I was at the range yesterday using factory ammo and got a terrible jam. The case is stuck half in the chamber and the slide won't move. I had a couple of the range officers look at it and one of which is a gunsmith and they all said they have never seen a jam this bad. The slide is completely locked up, won't budge a bit. The RO that is a gunsmith was saying either have a local smith in my town look at it or send it back to Glock. Everyone felt it was an ammo issue but I have had fail to ejects with this gun and haven't done the recoil exchange program because for the last year I have loaned the gun to my parents. Anyone had a jam like this?