100 mm HVAPDS-T UBM-6

equivalents. The Chinese Type 59 tank with its locally produced 100 mm main gun does not include an equivalent of this round in its normal ammunition inventory, although some form of APDS is offered by NORINCO as part of an enhanced performance 100 mm gun package. However, the Pakistan Ordnance Factories do produce a 100 mm APDS. Description The 100 mm HVAPDS-T BM-8 is the projectile component of a fixed round with the projectile assembly securely fixed to the brass cartridge case. The case mouth periphery is pressed around the narrow steel drive bands, five in number, which encircle the rear of the projectile assembly. The BM-8 projectile assembly consists of a light-alloy sabot and projectile. The penetrator has a diameter of 49.5 mm and a length of 120.14 mm. The streamlined nose of the projectile carries a pyrotechnic-filled tip to provide a flash indication of the impact point on a target. Behind this is a light-alloy cap covering the relatively blunt nose of the tungsten carbide penetrator. A thin-walled metal liner surrounds the penetrator and a tracer element is carried inside a housing protruding from the penetrator base. The penetrator subprojectile without the sabot weighs 2.9 kg. The brass or lacquered steel cartridge case contains 6.66 kg of stick and granular propellant, plus flash reducing and wear additives located in a ring close to the top of the cartridge case. There is a KW-13 or KW-13U percussion primer threaded into the base. Brass cases are made of MK-75 brass and weigh 8.5 kg. The flange diameter is 147.5 mm. Technical references retained in this configuration include NQ/M, 300 mm, 20 kg, 4.9 kg, 6.803 kg.