For a single all-around North America cartridge, I’d look at the 280 AI if you reload, the 7 mm Rem Mag if you don’t. If you don’t want the bigger recoil, look at the 30.06. For rifles, like so many have said, the Tikka line is fool proof. If not Tikka, the Bergara is good also. I have a Christensen Arms Mesa that’s very dependable also.