An item referred to the Naval and Military Record dated 9 April 1919 reporting that the 30,5cm German shells with a weight of 445 kilo were able to penetrate from a distance of 6 kilometres armour with a thickness of 43,6cm Krupp as became clear during the Battle of Jutland.(1)
Note
1. Battle of Jutland or Skagerrak on 21 May-1 June 1916 between the British and German main fleets in the North Sea near the Danish Jutland Peninsula.
