7mm-08 ammo in stock Are you insearch of 7mm-08 ammo for your hunting season? You are at the right place we offer the best brand & grains of 7mm-08 all about ammo are of factory 7mm-08 ammo? The 7mm-08 ammo is is a rifle cartridge that is almost a direct copy of a wildcat cartridge developed around 1958 known as the 7mm/308.