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76 mm AP-T BR-350B
Region
Romania
Category
Ammunition, Missiles and precision weapons
Armament 76 mm Divisional Field Gun M1942 (ZIS-3); 76 mm Mountain Gun GP ( M1966 ); D-56T tank gun; NORINCO 76 mm Field Gun Type 54. Development The first AP-T for the ZIS-3 field gun family was the BR-350; the BR-350B was an enhanced performance version with an improved propellant providing a higher muzzle velocity for the projectile. Neither type is now likely to be encountered operationally, although the BR-350B is still in production in Romania and offered for export sales by ROMARM. Description The 76 mm
(actual calibre 76.2 mm) AP-T BR-350B are fixed rounds with the projectile rigidly fixed to the cartridge case by a 360º crimping band, located in a cannelure close to the single copper drive band which is 13.72 mm wide. The projectile is solid hardened steel with a thin metal windshield providing a streamlined ballistic outline for the blunt nose of the armour-piercing projectile. The base of the projectile has a machined cavity to accommodate a small (65 g) two-part A-IX-2 bursting charge ignited by an MD-8 base detonating fuze threaded into the base. The rear of the fuze has a protruding assembly housing a tracer element. The straight-sided cartridge case is extruded brass (lacquered steel has been used) and contains approximately 1.08 kg of loose-filled 9/7 nitrocellulose powder plus S-1 decoppering agent, distance piece and obturator to fill the gap between the propellant and the projectile base. A 25 mm brass percussion primer housing is threaded into the base. The muzzle velocity is of the order of 680 m/s (BR-350, 662 m/s), producing a direct fire range of approximately 780 m, although the maximum range is 4,000 m. The projectile can penetrate 60 mm of vertical armour at 1,000 m. : For D-56T tank guns. Offered for export sales VERIFIED Authorised fuzes BD MD-8 Equivalent rounds ROMANIA ROMANIA Manufacturer SN ROMARM SA Type: AP-T BR-350B