ive had trouble with my R10 shooting 6" to left the day after ive just set the sights up, set it up again, same problem shoots to left, and again and again,thought it was cos i just had my shroud shortend? but gun shop seems to think it could be my HAWKE SCOPES.only had them 2mths, he said theres loads of cheap japanese copys about, ill let you kno the outcome when hes done some tests?