Controlled feed extractors do not jump over, when the feeding misses and pushs a round in the chamber, it won't grab the round and ram the round in chamber instead. When the chamber is tight, the round is stuck there unless pushed out with a cleaning rod. Is there another way? I could bend the extractor spring to reduce the tension so extractor can jump over but then it may not grab the extracted casing tight to make a solid hit to ejector. This is a 7.62x39 Mauser I built from a Turk 98 Mauser action. It feeds well if the round does not miss the extractor which may happen if the round leave magazine early.