The 308 Win performs very well because of its impact velocities at 300 yards and in. Moose in general are taken well inside 300 yards and typically inside 200 yards. 165 and 180 partition class bullets work very well expanding even at 1,600-1,800 fps impact velocities. A NPT or Swift A-Frame out of a 308 Win will never be the weak link in the overall hunt.