Remington 700 PSS in 308 with Leupold Mk 4 scope, rings & mounts with a harris bi-pod. get the Eagle shooting mat/dragbag. Get a Dewey cleaning rod & keep it in the drag bag. Then get a case of Federal Gold match ammo.
Mix it all up & find a place to shoot & have fun.
I have this set up in a 300 Winchester Mag. But I shoot often & can handle 100+ rounds a session. But you should start out with the 308 as it it easier to learn and can do 200 rounds without tireing.
Try to find a place with 1000+meters to shoot. We have a place in the high desert that has a mountain for a backstop and can go up to 2000 meters!! Tons of fun shooting 1 gallon plastic milk jugs full of colored water at 800 + meters!