My Stag 2TL had issues firing the TulAmmo steel case rounds. They would fire fine but the case seems to expand. I fired about 30 rounds before one actually locked in chamber. I had to use a cleaning rod and force the case out of the chamber and noticed that my extractor actually took off a chunk of the cartridge rim. Upon further inspection of other spent rounds I noticed all the rims had marks from my extractor. Lesson learned dont use cheap Russian shit in a Stag!