Home Firearms Ammo 11.17x54r Ball Ammo FirearmsAmmo 11.17x54r Ball Ammo By Mervin - July 22, 2011 0 SHARE Facebook Twitter If you’re wondering what gun fires this beast, there isn’t one. It’s a joke, made out of a 7.62x54R case and a .44 caliber black powder pistol ball. [Source: Reddit]