Show I 1 T new IV projectile Project Uc Is highly efficient helped ed yank armies to bring nazis to knees CHICAGO armor piercing projectiles with cores of cemented tungsten carbide the hardest metal made by man were used by the united states army to smash the thick steel walls of german tiger and royal tiger tanks with precision it was announced by the th e ordnance division of company inc these projectiles engineers explained actually are shells within shells and they form a striking force so effective that the heavy steel shields of german tanks have been pierced by single hits at ranges up to yards two outstanding combat advantages have been established for this projectile since use of it in action by the united states army began during the st lo 10 breakthrough break through last summer one is the extremely hard and tough tungsten carbide core penetrates armor with far greater effectiveness than will steel piercing units the other is the new type projectile weighs less than other antitank shells of similar size this permits the given gun to fire the projectile with a much higher velocity the inner core the slug that really rips the tanks open is composed of the hardest of metals this armor piercing core is housed in a relatively light hous housing ing i or outer shell which is made primarily of aluminum the prime function of the outer covering is to streamline the overall unit and permit a small diame diameter tei core to be fired from a larger bore gun for the 76 mm gun for instance approximately half the weight is contained in the core the total projectile weight being nearly 9 pounds compared with approximately 15 pounds for conventional steel armor piercing projectiles As a result muzzle velocity of the projectile is around feet per second compared with 2800 feet per second for the old type shell of similar size |