A lot of 22s are sensitive to or work better with one brand of ammo over another. This is usualy more of a problem with autos than revolvers but extraction of fired casses where always harder with cci or remintion ammo than federal in a S&W 17 and a Dan Wesson that I had.. You will also finde that one brand or lot of 22 ammo will shoot a litte more accutitly than another. Each gun will have differnt likes and dislikes, you have to try differnt brands and types to find out wat the gun likes.
