either will be fine, but i also am a big fan of the 7's i have two guns in 7mm-08, one pistol, and one rifle, i have two in 7mm mag, and i have one in 7mmSTW, i would not suggest the STW, in fact i am thinking of selling mine, the only reason is it is equiped with a brake and is just too dang loud, not sure of how bad recoil would be W/O th brake but the 7 RM does everything i need plus more to begin with, but for what ever sick and twisted reason i like trying new and different cals
, i guess that why i enjoy re-loading so much, that and you can't buy ammo at just any store for an STW
i would stay with a 270 thru a 30 cal in the event you venture out west for elk or the likes, for me the 7's fit the bill great with great bullet choices from 120gr. to mid 160gr's and low BC's..the 06 has the same advantage and IMO you are a little more limited with the 270 bullet choices, but it is a fine round...