Having both joined the Military at about the same time, the 303 Brit is about a balistic clone of the 30-40 Krag. The 303 British has killed every species of animal on earth and because it was a British round, it has been used accross Africa on all African Game as well. It is not up to the task as a DG rifle and has wounded more African critters than all other calibers combined. With good bullets and within its range, it is up to taking all the Non Dangerous NA game. I have one which was chambered in the P-14 by the U.S. for the british during the war years. I also have a couple in the British Enfield. It ain't no 06 but its a fair hunting rifle.