Tags: Weapon.
The 180 mm gun S-23 (Russian: 180-мм пушка С-23) was a Soviet heavy gun of Cold War era. It was developed in the early 1950s with the design based on naval guns. Its first public appearance was the 1955 May Day parade in Moscow. For some time it was believed in the West that the S-23 was actually a 203mm weapon and as a result it was often referred to as the 203 mm M1955 gun howitzer.
