The later armour-piercing shell was intended to reach machinery spaces, reduce manoeuvrability, or achieve a magazine kill at long range. Earlier British ammunition doctrine still reflected lessons drawn from Tsushima and pre-dreadnought combat. Long-range fire was expected to damage superstructure and slow the enemy before six-inch guns helped finish the action at closer range. Gunnery ranges and fire-control systems had advanced faster than the doctrine embedded in shell testing, leaving ammunition poorly matched to the battle the fleet now expected to fight.
Notable Point · 23:03-24:18
Shell design lagged behind long-range battle doctrine
British fire control had moved toward all-long-range combat while shell assumptions still reflected a Tsushima-era sequence of disruption followed by a close-range finish.