Except for ruger 10.22's, most rifles are capable of 2moa or better at 50, and 4moa or better at 100, with idea conditions of course. This is what I believe, others may not, but I shoot almost every weekend, for years, and shoot mostly rimfires; 17's and 22's. This has been my experience with 99% or the rimfire rifles out there. Rimfires are not as forgiving as centerfires; any wrong move, twitch, breath, fingerbang(southpark), cheekmove, etc., is going to throw a shot, bad. any wind over 5 mph, that suddenly moves, is going to move your shot in the direction of the move, 1 inch or more, at 100 yds.