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280 mm mortar M1939 (Br-5)
280mm mortar M1938-01.jpg
Br-5 in Saint Petersburg Artillery Museum.
Place of origin USSR
Service history
In service 1939-1970s
Used by  Soviet Union
Production history
Designer Barrikady
Manufacturer Barrikady
Produced 1939-1940
Weight combat: 18,400 kg
travel: 19,700 kg
Barrel length bore: 3,975 mm / 14.2 calibers
overall: 4,750 mm / 17 calibers
Crew 15

Caliber 279.4 mm
Elevation 0 to 60 degrees
Traverse 8 degrees
Rate of fire 1 round every 4 minutes

The 280 mm mortar M1939 (Br-5) (Russian: 280-мм мортира образца 1939 года (Бр-5)) was a Soviet heavy artillery piece used during World War II. This mortar was the Red Army´s heaviest field piece. Distinguished by the siege of Berlin, these weapons quickened up the Red Army´s assault on the German capital. Due to the heavy weight of shell (168 kg) the blast created a 10 metre deep crater. The weapon had low rate of fire due to muzzle overheating.


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