If you really want versatility to all big game in Oregon, you cannot beat a 30-06. However, don't be misled by published ballistics. The Springfield was designed with lower pressures in mind, and 30-06 ammo and handload manual data has reflected those lower pressures since.

To give to an idea, you can shoot a 168 grain TTSX at 2900 fps+ from a 24" barrel. That bullet has a BC of .470. It makes for a very flat shooting rig that will handle deer, black bear, and elk very well. Further, recoil is mild evven when you get a rig--like my M-70 Classic--that weights 7 3/4 lbs with the scope.