130 mm/50 B13 Pattern 1936

< 130 mm
130 mm/50 B13 Pattern 1936
130 mm/50 B-13 in Kuivasaari
TypeNaval and coastal gun
Place of originSoviet Union
Service history
In service1935—1998
Used bySoviet Union
People's Republic of China
Poland
Egypt
Indonesia
Finland
WarsSecond World War
Production history
DesignerN. N. Magdasijev
G. N. Rafalovits
Designed1929—1935
ManufacturerBolshevik Plant no. 232
Produced1935—1954
No. built1199
Specifications
Mass5,180 kg (11,420 lb) (gun only)
Length6,581 mm (21 ft 7 in)
Barrel length6,450 mm (21 ft 2 in) (bore)
5,199 mm (17 ft 1 in) (rifling)
Crew1+10 (B-13)

Shell130 x 846 mm R
Caliber130 mm (5.1 in)
BreechScrew breech
Elevation-5° — +45°
Rate of fire5-13 shots/min (depending on mounting)
Muzzle velocity820–870 m/s (2,700–2,900 ft/s) (depending on model and ammunition)
Maximum firing range25,597 m (27,993 yd)

The 130 mm/50 B13 Pattern 1936 was a 130 mm (5.1 in) 50 caliber Soviet naval gun. The weapon was the standard primary armament of Soviet-built destroyers from about 1935 to 1954 (although it would remain in-service well into the 1990s), and it was also utilized as a coastal gun and railway gun. The gun was produced in three different versions which all had incompatible ammunition and range tables. Mountings for the weapon included single open mounts and twin turrets. Besides the Soviet Union, the gun was used on ships sold or donated to Poland, People's Republic of China, Egypt and Indonesia. Finland captured five guns during the Continuation War and used them until the 1990s.