100 mm field gun M1944 (BS-3)

The 100 mm field gun M1944 (BS-3) (Russian: 100-мм полевая пушка обр. 1944 г. (БС-3)) was a Soviet 100 mm anti-tank and field gun. The gun was successfully employed in the late stages of World War II, and remained in service into the 1950s, being replaced in Soviet service by the T-12 antitank gun and the 85 mm antitank gun D-48 in 1955. The BS-3 was also sold to a number of other countries and in some of these countries the gun is still in service. A number of BS-3 pieces are still stored in Russian Ground Forces arsenals. Also, in 2012, at least 12 BS-3 guns are active with the 18th Machine Gun Artillery Division, located on the Kuril Islands, used as anti-ship and anti-landing guns.

100 mm field gun model 1944 (BS-3)
TypeField and anti-tank gun
Place of originSoviet Union
Service history
WarsWorld War II
Vietnam War
Yom Kippur War
Production history
Mass3,650 kg (8,047 lbs)
Length9.37 m (30 ft 9 in)[1]
Barrel lengthBore: 5.34 m (17 ft 6 in) L/53.5
Overall: 5.96 m (19 ft 7 in) L/59.6
(with muzzle brake)
Width2.15 m (7 ft 1 in)[1]
Height1.5 m (4 ft 11 in)[1]
Crew6 to 8

ShellFixed QF 100 × 695 mmR[1]
Caliber100 mm (3.93 in)
BreechSemi-automatic vertical sliding-wedge[1]
CarriageSplit trail
Elevation-5° to 45°
Rate of fire8 to 10 rpm
Muzzle velocity900 m/s (2,953 ft/s)
Maximum firing range20 km (12.42 mi)


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.

Ammunition data

  • Ammunition
    • AP: BR-412
    • APBC: BR-412B, BR-412D
    • HE/Fragmentation
  • Projectile weight
    • AP/APBC: 15.88 kg (35 lbs)
    • HE/Fragmentation: 15.6 kg (34.39 lbs)
  • Armor penetration (BR-412B, 30° degrees)
    • 500 m : 190 mm
      (547 yds : 6.29 in)
    • 1000 m : 170 mm
      (1,093 yds : 6 in)


See also


  1. Foss, Christopher (1977). Jane's pocket book of towed artillery. New York: Collier. p. 59. ISBN 0020806000. OCLC 911907988.
  2. http://armstrade.sipri.org/armstrade/page/trade_register.php
  3. Schuster, Carl Otis; Coffey, David (May 2011). "Vietnam, Democratic Republic of, Army". In Tucker, Spencer C. (ed.). The Encyclopedia of the Vietnam War: A Political, Social, and Military History (2 ed.). p. 1251. ISBN 978-1-85109-960-3.


  • Shunkov V. N. - The Weapons of the Red Army, Mn. Harvest, 1999 (Шунков В. Н. - Оружие Красной Армии. — Мн.: Харвест, 1999.) ISBN 985-433-469-4
  • Christopher F. Foss, Artillery of the World
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