I've had the 7615 for a few years to shoot IPSC rifle so far its been ok until last Sundays match. Maybe 1 out of 10 spent shells fail to eject. The extractor would pull the shell out of the chamber and then let go of it so it would sit on the loaded rounds that are waiting to be chambered so in the heat of an IPSC match I would have a double feed. When it does eject it spits them out fine. I removed the bolt assy and saw the " C " shaped extractor flopping around in its groove, there is no tension on this thing, I removed it to find there is no spring quality in the sides of it either, I tweeked the the arms either side of the hook and refitted it to find it went back to its loose state again. is there a better extractor for this rifle ?? ..Thanks