100 mm field GUN M1944 (BS-3)

100 mm field gun model 1944 (BS-3) BS-3 at the Israel Defense Forces History Museum, Israel Type Field and anti-tank gun Place of origin Soviet Union Service history Wars World War II Vietnam War Yom Kippur War Production history Produced 1944–51 Specifications Mass 3,650 kg (8,047 lbs) Length 9.37 m (30 ft 9 in)[1] Barrel length Bore: 5.34 m (17 ft 6 in) L/53.5 Overall: 5.96 m (19 ft 7 in) L/59.6 (with muzzle brake) Width 2.15 m (7 ft 1 in)[1] Height 1.5 m (4 ft 11 in)[1] Crew 6 to 8 Shell Fixed QF 100 × 695 mmR[1] Caliber 100 mm (3.93 in) Breech Semi-automatic vertical sliding-wedge[1] Recoil hydro-pneumatic[1] Carriage Split trail Elevation -5° to 45° Traverse 58° Rate of fire 8 to 10 rpm Muzzle velocity 900 m/s (2,953 ft/s) Maximum firing range 20 km (12.42 mi) History The BS-3 was based on the B-34 naval gun. The development team was led by V. G. Grabin. The gun was employed by light artillery brigades of tank armies (20 pieces along with 48 ZiS-3) and by corps artillery. In the Second World War the BS-3 was successfully used as a powerful anti-tank gun. It was capable of defeating any contemporary tank at long range, excluding the Tiger Ausf B: to destroy that heavy tank the gun needed to shoot at less than 1600 m from the target. The gun was also used as a field gun. Though in this role it was less powerful than the 122 mm A-19, as it fired a smaller round, the BS-3 was more mobile and had a higher rate of fire.