For God so loved the world that he gave us the 303.

"Originally designed as a black powder cartridge, the .303 British was the first loaded with a smokeless propellant called Cordite around 1892. The .303 served as a British military cartridge until the 1950's and at one time was an extremely popular big game cartridge. In the hands of farmers and natives, this cartridge with its long .311" bullet has probably killed more African game than any other."