I recently bought one of the Yugo M48 Mausers from Marstar and the other day I got to take it out to the range for the first time. The first thing that I noticed was that when I loaded the magazine with more than one round the rifle had trouble chambering. The round would go into the chamber but the bolt would not "grab" the round properly and I could not get the bolt down. I also noticed that after firing it had some trouble extracting. It would take the casing out of the chamber but most of the time it would not go flying off; it would stay stuck to the extractor and I would have to pull it off by hand. Should I look at getting a new extractor or is it possibly something else?