I definitely think that the .270 has more then enough knock down power. Ive seen moose shot with them but once again it just has to do with the bullet its self. I hunt with a 30.06 for deer, elk, moose and i honestly am thinking about buying a smaller caliber rifle such as the .270 for deer cause where i hunt them its very flat and the .270 does shot flatter. So i really dont see why you shouldnt buy a .270