Shot at Spartanburg GC this past Saturday. Unfortunately, I left the house without ammunition. Bought a flat of NobelSport (2 3/4 dr,. 1 1/8 oz, #8 shot) as it was the only thing they had. Have never shot this particular brand of ammo, and I probably won't do it again soon. First few targets of 16 yards, I had to "knee" break my K80 after firing. I thought rather unusual, thought it might be the receiver or something. Fat chance, shot terrible singles and almost every shot induced the knee. It was getting very ugly and I had to wait until the shooter after me finished, so I would not interfere with her rythm. Same thing happened during the entire Handicap event as well. Long story short, between events I thoroughly cleaned my gun, so I know it was not gun related. Has anyone else had this problem with "Trap Gold" shells? I normally shoot Federals and have never before experienced this issue. Anyone want to add their two cents?