RE: One Rifle
I own .308, 30/30 and .270. That said i have a super varmet wetherby .308 and it weights 12lbs on the scale with the scope. I can shoot this all day long buy my G/F can only shoot the sucker 1 or 2 times and she pusses out, same to be said with the .270.
You might want to check into a 25-06. With the hot rounds from hornady it has almost the same knock down power as a .270 but wont kick the crap out of you. Just my 2 cents.