RE: New Rifle
I am partial to the 7mm Mag. With 140 grain bullets, you can take antelope and deer. With 175 grain bullets you can hunt bear and elk. I have a Browning A-bolt with the Boss system. I have shot both 140 and 175 grain bullets and can set the Boss accordingly. You still have to adjust the scope of course. I think the 30-06 is a great choice also. You might consider the .300WSM.
Good Luck.
Anbo_1