Both the 30-30 and 303 British deserve #1 position. The 303British has likely killed more animals considering the size of the British Empire.
The 303 has also been used on game that it shouldn't be used on. In "Maneaters of the Tzavo", Col. Patterson uses the 303 on lions. Through the book he repeatedly says he shot a lion that escaped. I wonder how many injured maneaters he created with it.
