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Cartridge, 105 mm, APDS-T L52

Region
South Africa
India
Category
Ammunition, Missiles and precision weapons
The Cartridge, 105 mm, APDS-T L52 is the 105 mm L52 APDS-T round is fixed, with the projectile assembly rigidly fixed to the brass cartridge case. The projectile assembly consists of a subprojectile and a sabot. The subprojectile consists of a pointed tungsten alloy penetrator with a steel nose pad and a tracer element in the base. This is all mounted in a light alloy sabot which separates from the subprojectile once the projectile assembly has left the gun muzzle. The 70:30 brass cartridge case contains a nominal
5.6 kg of loose packed NQ/M12 multiperforated propellant, although NQ/M 047 was originally used. An L1 series electrical primer with an elongated flash tube is fitted into the base. Before loading, the primer is normally protected by a metal clip over the base of the cartridge case. The L52A3 is fired at a muzzle velocity of 1,426 m/s. Armour penetration has been reported as 280 mm at 1,000 m and 254 mm at 1,500 m. Accuracy has been stated as 0.3 mil vertically and horizontally. The training round for the 105 mm APDS L52 is the lower cost DS Prac L63 which can also be used as the training equivalent for the 105 mm APFSDS L64 and H6/62, out to a range of 2,000 m. The DS Prac L63 uses a steel subprojectile which matches the APDS L52 ballistically out to a range of 1,100 m while extending the barrel life. Round weight of the L63 is 14.91 kg of which 3.91 kg is the projectile. The cartridge case contains 3.97 kg of NQ/M07 propellant. Also likely to be encountered is the Canadian SNC TEC 105 mm TK TPDS/T C-74. This round weighs 16.3 kg of which 4 kg is the projectile assembly; the subprojectile weighs 2.11 kg. The propellant charge contained within the C4 cartridge case is 5.1 kg of M6/NHP. Muzzle velocity is 1,590 m/s and the sub-projectile, with a C6 tracer element, provides a ballistic match with APFSDS up to 2,500 m. Pakistan Ordnance Factories produce a low-cost 105 mm DS/T with a subprojectile matching APFSDS up to a range of 1,600 m. The safety zone does not exceed 15,000 m.