US Cartridge, 20mm HEI. How it works

This video shows you how 20mm projectile work when it is used. In live the projectile has rotation. I am currently raising funds for a 3D printer “Flashforge creator 4“ to make mock-ups of parts and I will be glad for your help: - PayPal: andim461@ - USDT (ERC20): 0xadfEB3CC93bc95e17B05Fe39CE10232EB4153545 - ETH: 0xadfEB3CC93bc95e17B05Fe39CE10232EB4153545 #cartridge, #weapons, #ammo, #ammunition, #bullet, #weapon, #artillery, #antitank