Then, I would look for a good deal on a 300 Win Mag or 300 WSM
There are lots of good rifle and scope choices with a huge price range.
Remington Sendero, Winchester Coyote, Savage Long Range Hunter
Nikon, Bushnell, Vortex
Blaser, Cooper, Gunwerks
Leupold, Nightforce, Schmidt-Bender
What's your budget?