How far out are you talking?
The 270 will get pretty far as easily as the 308.
Yeah, if I had a 270 Sendero I’d be trying the Nosler ABLR, Berger 150’s, Hornady 145 ELD, etc before ever replacing it with anything 308 myself. Unless you’re just looking for less expensive range ammo, then the 308 makes a pile of sense.