I have a new guy question here. I bought a new ruger 10 22 last spring and at first it was fairly accurate. Then I put 5000 rounds down the pipe during the summer (yes I counted) and by the end of summer my grouping is really awfull. The grouping went from about 2-3 inches at 100 yards to about 6-8 inches. Could I have worn the barrel out? Did I screw up re-installing the factory stock after cleaning? Any advise would be appreciated.
Thanks
Thanks


















































