gun used on almost all Japanese warships of World War II. Russia / Soviet Union 356 mm M1913 Russian naval gun 305 mm M1948 Soviet naval gun 305 mm M1940 Soviet naval gun Obukhovskii 12"/52 Pattern 1907 gun Obukhovskii 12"/40 Pattern 1895 gun 254mm 45 caliber Pattern 1891 203 mm 50 caliber Pattern 1905 203mm 45 caliber Pattern 1892 180mm Pattern 1931-1933 152 mm 45 caliber Pattern 1892 6 inch 35 caliber naval gun 1877 130 mm M1957 Soviet naval gun 130 mm/55 B7 Pattern 1913 naval gun 130 mm/50 B13 Pattern 1936 130 mm gun from the 1940s used in the B-2LM turret 120 mm 50 caliber Pattern 1905 120mm 45 caliber Pattern 1892 102mm 60 caliber Pattern 1911 AK-100 Naval gun AK-176 75mm 50 caliber Pattern 1892 Spain Gonzalez Hontoria de 32 cm mod 1883 Gonzalez Hontoria de 28 cm mod 1883 Gonzalez Hontoria de 16 cm mod 1883 Gonzalez Hontoria de 14 cm mod 1883 Gonzalez Hontoria de 12 cm mod 1883 Sweden Bofors 283 mm gun Bofors 254 mm gun Bofors 152 mm gun Bofors 120 mm gun Bofors 57 mm gun Bofors 40 mm gun Switzerland Oerlikon 20 mm cannon United Kingdom BL 18 inch Mk I naval gun BL 18 in / 45 naval gun, planned for the N3-class battleship RML 17.72 inch gun BL 16.25 inch Mk I naval gun BL 16 inch Mk I naval gun RML 16 inch 80 ton gun BL 15 inch Mk I naval gun BL 14 inch Mk VII naval gun EOC 14 inch /45 Marks I and III BL 13.5 inch Mk V naval gun BL 13.5 inch Mk I-IV RML 12.5 inch 38 ton gun BL 12 inch Mark XIII BL 12 inch Mk XI, Mark XII BL 12 inch Mk X naval gun BL 12 inch Mark IX BL 12 inch naval gun Mk VIII RML 12 inch 35 ton gun EOC 12 inch /45 RML 11 inch 25 ton gun RML 10 inch 18 ton gun BL 10 inch Mk I-IV Vickers 10 inch /45 naval gun EOC 10 inch /45 naval gun EOC 10 inch 40 caliber RML 9 inch 12 ton gun BL 9.2 inch naval gun Mk VIII BL 9.2 inch Mk XI BL 9.2 inch gun Mk IX–X BL 9.2 inch gun Mk I–VII BL 8 inch Mk VIII naval gun BL 8 inch Mk I-VII naval gun ML