|280 mm mortar M1939 (Br-5)|
Br-5 in Saint Petersburg Artillery Museum.
|Place of origin||USSR|
|Used by||Soviet Union|
|Weight||combat: 18,400 kg|
travel: 19,700 kg
|Barrel length||bore: 3,975 mm / 14.2 calibers|
overall: 4,750 mm / 17 calibers
|Elevation||0 to 60 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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