I saw a post on facebook of a guy claiming he can shoot 1/2 inch 10 shot groups at 100 yards all day long! I have been shooting 22lr a very long time. I called him out on this claim. I know how many variables go into this. Mostly ammo! He is claiming that is not that big of deal!! Am I just getting old and not able to get those results? I get alot of 1/2 inch groups! But get alot of 1 inch and greater groups! What are your experiences?