RE: disappointed in my marlin
I have a Henry Golden boy .17hmr, I shot two .750 groups the last time I took it out. Also have a Savage, so far I can't get it to shoot like I want.
I tightened up the guard screws and remounted the scope but haven't tried it since. Always make sure your guard screws are snug, if they are loose it can cause a shift action to stock.