Cool Forgotten Weapons Merch! null We're still working on an extended write-up on the DShK heavy machine gun, but thanks to our friend Leszek in Poland, we have some nice HD video of one firing. The Russian counterpart to to Browning M2, the DShK uses the same flapper-locking system as the DP and RPD machine guns, and is chambered for the 12.7x108mm cartridge (9mm longer than the .50 BMG cartridge). This particular gun is the updated 38/46 version, which has the distinctive wheel-shaped muzzle brake.