I'm guessing you have the Express model? Change your extractor to a machined steel part, the Express has a stamped extractor that will slip and not eject. Shooting the hotter shells they expand more and are harder to eject, the cheap extractor will slip. You can get a replacement extractor for about 25$ EBAY has them so does Beownells or midway USA. This is a common problem with the Express it's been mentioned on the forum several times. 5 min fix there's several Youtube videos showing how.