"Jack",
I'm pretty new to the 10/22's and after reading allot of threads on Rimfire Central I sent my stock carbine off to Connecticut Precision Chambering and let Randy do a "full" tune up. At 50 yards it bug holes, windy and quick it groups at no more than 3/8th inch. My goal was for hunting small game only 20 to 70 yards or so. I have not tested it at 100 or beyond and really don't care, for what my intentions were I'm very happy with how it performs.