I'd have to go with the 7mm Rem Mag.
shoots flat as a 270 Win with the bullet weights of the 30-06 or flatter and ammo can be found everywhere if you don't reload.
Recoils no more than an '06 in a rifle of the same weight.
And, I've had all the common 7's from 7-08 thru 280 as well as the 280AI (still have one) and I've killed deer with a 30-06 and carried a 300 Win Mag after elk for 12 seasons,....shot deer with a 270 Win and a 243 Win......I could have done it all with a 7 Rem Mag.

"after the bullet leaves the barrel it doesn't care what headstamp was on the case"
"The 221 Fireball is what the Hornet could have been had it stayed in school"