I normally take a .416 to Africa with me when I go visit the camps that I book for...I shoot everything with it..I don't like to haul two guns all over the world, as I travel a lot between contries..
The original question was will a .338 kill buff..Yes it will about like a 375 or 9.3x62 or 9.3x64..If they rewrote the rules today they would include the 338 as legal IMO...It will shoot a 300 gr. bullet at 2500 FPS in my gun..What else does it need to kill a critter raised on milk?
It is not my favorite buff caliber, the 40 calibers suit me best.