Selecting ammunition in a capital-ship autoloader

Does a capital-ship autoloader need separate carousels for armour-piercing and high-explosive shells?

Possibly, although a versatile armour-piercing shell with a larger bursting charge could reduce the need for two separate feeds.

A heavy-gun autoloader must either store multiple shell types in accessible feeds or reduce the number of types it carries. Separate carousels for armour-piercing and high-explosive rounds are plausible. The alternative is to rely on an armour-piercing projectile with a somewhat larger bursting charge and avoid a distinct high-explosive stream. The choice links mechanical complexity to the ship's ammunition doctrine.