After the same sort of experience from the .338-06 to .340 Weatherby (though most with the .338 Winchester) I would have suggest no noticeable difference between 'em and .30-caliber cartridges from the .30-06 to several .300 magnums--but after reviewing my hunting notes am in agreement with the .270 Winchester. Or maybe even the 6.5 PRC, which I've been using for several years now, and is essentially a short, fat .270....
