Shared magazines versus survivable ammunition stowage

Should a warship use a magazine for each turret or a shared magazine?

It depends on the balance sought. Separate magazines improve survivability; shared or honeycombed arrangements use internal volume more efficiently.

A ship may use individual magazines, one shared space, or a compartmentalized complex serving several turrets. Separate magazines limit how far one hit can affect the ammunition supply. A common or honeycombed arrangement uses internal volume more efficiently and can hold more shells and propellant for the space available. Designers choose among them by balancing stowage efficiency against the degree of damage isolation they want.