Design History
The order to design a "duplex" artillery system to replace the obsolete 122 mm gun M1931/37 (A-19), 152 mm howitzer-gun M1937 (ML-20) and other World War II era field guns such as 122 mm Model 1931, 152 mm Model 1910/30, 152 mm Model 1935 (BR-2), was given in April 1946. The new systems, designed by the factory No 172 (MOTZ), shared the same carriage and were given the designators M-46 (130 mm) and M-47 (152 mm). The respective GRAU designators are 52-P-482 and 52-P-547. The development phase was finished in 1950 and one year later series production started. Many M-46s were exported.
A second "duplex" artillery system was subsequently designed by FF Petrov's design bureau at Artillery Factory No 9. This comprised a 122 mm Gun and a 152 mm Howitzer. The 122 mm Gun D-74 was a competitor to M-46, and while many were produced the M-46 became the only long range Gun in Soviet service until new 152 mm Guns in the 1970s.
Read more about this topic: 130 Mm Towed Field Gun M1954 (M-46)
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