.300 Win Mag is an excellent choice. I've had my Ruger 77 Mk II for over 20 years. It's a tack driver. And I get those cloverleaf or sometimes even one hole groups from it.
I'm impressed by the TC Dimension. Had a 700 SPS and not all that impressed but it did shoot tight groups.
Other good choices are the Tikka T3 Hunter (wood stock) and of course the Savages shoot tight groups.