Watch for the trigger guard. It's made of aluminum and it can crack if you tighten the front screw too much.
I have owned hundreds of Ruger rifles and I torque the living crap out of the front angled action screw, it is one of the keys to good accuracy with an M77... Ruger recommends hyper torquing the front screw, it is the reason that they have switched from flat head screws to Torx screws.




















































