mefesto, it sounds like you may have a weak extractor spring. Shortly after I got my Hi-Power Detective it started jamming on shells that didn't eject. I could actually push the extractor in with my finger so I replaced the extractor spring. Problem solved. I definitely wouldn't shelve or sell the gun if I were you, at least before you take a look at that spring. These guns are amazing and the spring is really cheap and takes less than half an hour to replace.