I shot my first buck with a 30-30..
Told that that no other caliber is responsible for more big game animals than the 30-30.. The 30-30 is also responsible for crippling more big game animals than any other caliber out there as well..
My choice would be the .308 Lever or .284Win 7mm-08Rem in a bolt..
They are all very very accurate calibers, efficient calibers, just as easy to maneuver in thick cover they and can cover distance out to 400 yards if needed..