Went today for a walk with the 3AT and Sub 9 9MM. Not a good day at all. Shot the sub 9 and about every 15 or 20 rounds, jam. Failure to extract looked like. Not sure what to do to it. Maybe just needs broken in good. Then got out the 380 and bang....jam...clear...bang....jam.... starting to get a little peeved and noticed the extractor on the slide looked a little loose. Tightened screw and one full clip no problem. Then ban...jam....clear...bang....jam....screw was loose again. Can't keep the danged screw tight. Afraid to overtighten and strip threads or break head off screw.... PS...both firearms were clean to start... any suggestions??