I have 4 of the tang safety models; a 30-06 (bought 1982), 300 WM (bought 1982), .338WM (bought 1980) and a .458WM (bought 1981). With a bit of load development, they all shoot 1" groups or less at 100 yards. I really like the built in bases and the tang safety. If you have accuracy problems, it has been my experience that the 60 degree action screw is not tight enough and the screws on the trigger guard are too tight.
The 77 is my first gun out of the safe when I go hunting-- and I own 23 centerfires in .30 cal and larger. They feel like an old friend.
A note, I really dislike the Ruger 77 mark 2, the safety is clumsy and I do not like the 'feel' of the action. You also can not adjust the trigger without totally taking it apart.
I wrote Mr. Ruger a letter when he redesigned the rifle and told him I thought he was making a mistake--- if I wanted a Winchester 70 -- I would buy one!