Germany 38 cm (14.96) SK C/34 - NavWeaps

Germany 35 cm/45 (13.78) SK L/45 - NavWeaps

O-Class, The Battlecruiser of Plan Z - Naval - War Thunder — official forum

O-Class, The Battlecruiser of Plan Z - Naval - War Thunder — official forum

Germany 38 cm/45 (14.96) SK L/45 - NavWeaps

In comparison to Gneisenau, why didn't the Kreigsmarine plan on upgrading the main guns on Scharnhorst to 15 inches? - Quora

380 mm/45 Modèle 1935 gun - Wikipedia

Germany 38 cm (14.96) SK C/34 - NavWeaps

Speculation] Performance of the Royal Navy's 381mm Mark 1 Gun and forthcoming RN BBs : r/WorldOfWarships

Why did Germany build the Bismarck class instead of building two 15-inch Scharnhorst designs, which only two less guns for far superior armor and speed? - Quora

Did naval architects 1890-1945 ever design a destroyer with a battleship gun in a fixed position for chasing battleships and shore bombardment? - Quora