The 20.3cm SK C/34 was the main battery gun used on the German Admiral Hipper-class heavy cruisers. These built-up guns consisted of a rifled tube encased
The 12.7 cm/40 Type 89 navalgun (40 Kokei Hachikyu Shiki 12 Senchi 7 Kokakuho) was a Japanese anti-aircraft (AA) gun introduced before World War II. It