This gun has been a pill to begin with. It's a Model 70 classic stainless. I love the gun but I think the barrel is too whippy for the cartride. The thing will shoot lights out one session and 3" groups the next. It seems to prefer RL22 as opposed to RL25 for some reason. I have also tried Retumbo but haven't really wrung it out. Aren't the Hodgon Extreme powders supposed to be more consistent?