The reason why I suggested the 30/06, is because if you are asking the question, chances are, you are new to the shooting sports,
not likely a reloader, and are looking for a rifle that is easy to come by, and likewise, the ammo.
What can top the 30/06 for a variety in bullet weights, in factory ammo?
From the 55gr. Remington Accelerator, to others having weights from 110grs., up to 220 grs.
No other rifle caliber with factory loads can take animals from gophers to grizzlys, that I know of.