Smaller torpedoes could increase a raider's shot count

Did navies consider smaller torpedoes so raiding submarines could carry more reloads?

Yes. Italian boats used adapters for 450-millimeter torpedoes in larger tubes, both to address shortages and to carry more suitable shots for smaller targets.

A viewer asks whether a commerce-raiding submarine could carry more reloads by using a weapon smaller than the standard torpedo. The discussion points to Italian practice with 450-millimeter torpedoes carried in 533-millimeter tubes through an adapter. This could stretch limited stocks and provide more shots against smaller merchant targets that did not require a full-size weapon. The idea is sensible because it matches payload to the expected target rather than standardizing every attack around the largest caliber.