The 12.7×108  cartridge was developed in USSR by early 1930s especially for the new heavy machine guns, to be used in ground support and AA roles, and latter also in aircraft armament. Originally chambered in Soviet DShK-38 heavy machine gun, this cartridge found a wide acceptance in eastern hemisphere, Asia and Africa. Machine guns for this round are still manufactured in Russia, China, Iran, Pakistan and a number of other countries. Russia and China also developed several anti-material (sniper) rifles in this caliber. Ammunition in 12.7×108 is also manufactured in many countries around the world, but mostly in Eastern hemisphere.


Designation Bullet weight, g Muzzle velocity, m/s Muzzle energy, J Comments
B-32 48.3 820 16 240 AP-I bullet with hardened steel core
BS 55.4 820 18 625 AP-I bullet with tungsten carbide core