Why wartime depth-charge loads exceed the handbook

What is the clearest example of official ship capacity differing from what captains and crews actually carried?

Depth charges: wartime Hunts and sloops often carried operational loads very different from the official figures.

Depth charges are an especially strong case where stated and operational loads could diverge. Hunts and sloops could carry far more in practice than a neat specification suggests. Wartime crews adapted stowage to threat and mission, so published capacity figures need operational context.