Ok so, it happened to me twice while shooting today... I shot about 80 rounds. Using military surplus...
It would get stuck about half a mm back. Not be able to eject further, we had to use a block of wood and hammer to get it to open up and pull out the empty casing...
We noticed no difference in the casings. Im thinking either it is head spacing or the gas system is not chambering a new round hard enough to seat it all the way in. Then firing, ballooning a little and being stuck and unable to eject.
It never did it on first shot usually on a second or third. Has any one else had issues like this ?


















































