Stay with me here. I have a norinco, milspec, no frills, stock. My problem, on the last round, on specific mags (not all of my mags), the round will fire, but will not extract. It will ches on the round to the point you must use a knife or screwdriver to get the shell casing out. Took it to my smith, he retensioned the extractor, made sure the ejector was proper, the problems as decreased to instead of what i explained above, the last shot, again on specific mags, will not extract, it will fire, and then set there in the action with no need to utilize any tools, just turn the gun and it falls out. it has confused the hell out of me, and my smith. It is damned frustrating. Could this be a mag problem, by the way, one of the mags it does this on is an 8 round wilson. is there a problem with ejector/extractor? Just wondering if any of you all have had this or a similat problem. Funny thing, one mag that it has never done this to, have no idea of the maker of this mag, has a different follower on it, its raised or a better description humped. like i said, damned frustrating. Any and all help is appreciated.