130 mm/55 (5.1") Pattern 1913
This weapon was originally designed as a cartridge gun, but the Russian Navy wanted a cheaper and simpler design, so Obukhov modified the weapon to use bag ammunition with a Welin breech-block. In 1913 the Obukhov factory received an order for 471 of these guns. By 1917, 147 guns had been manufactured with the balance to be delivered in 1917-18. However, due to the Russian Revolution, these remaining weapons were never completed. In addition to the guns built by Obukhov, a further 100 guns were ordered from Vickers in 1913 with most of them being delivered by 1917. link
This weapon was originally designed as a cartridge gun, but the Russian Navy wanted a cheaper and simpler design, so Obukhov modified the weapon to use bag ammunition with a Welin breech-block. In 1913 the Obukhov factory received an order for 471 of these guns. By 1917, 147 guns had been manufactured with the balance to be delivered in 1917-18. However, due to the Russian Revolution, these remaining weapons were never completed. In addition to the guns built by Obukhov, a further 100 guns were ordered from Vickers in 1913 with most of them being delivered by 1917. link
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