Took the day off on Thursday to hit the range. I had a box of Hornady and wanted to see how it groups at the 100 with my 20" Stealth. First round goes high from POA, which I kinda expected, but the round fails to eject and is half out the port, still caught on the extractor. I clear and shoot, this one hits closer to POA but again the round fails to eject and is caught in the extractor half out of the ejection port. 3rd and 4th shots also fail to eject and it's starting to bother me as evidenced by the last round way low and right. So I pull the BCG and notice the ejector is not cycling smoothly in the bolt, sometimes sticking halfway through. I then pull the BCG out of my January 2011 UHFO OBR Lite and pop it in the Stealth, try to settle in, and proceed to shoot the best string of the day.