I have a Ruger 77 Mk II, varmint/target model in .308, all stainless, laminated stock, adjustable trigger, all stock. I can show you targets with 3 shot groups that I can completely cover with a dime. The limitations are the scope on it and me, but as Mysticplayer has said above, there are no "tactical" or target accessories available for them.
I'm happy with it and it is a gorgeous rifle.
#1 .204 Wasp, Kreiger barrel 11" twist, Kepplinger set trigger, replaced the 6-18 Burris with 6.5-20 X 40 Leupold today, PTG reamer from my design, necked down .219 Wasp with .250 long .232 dia neck