Choosing between 100 mm and 10.5 cm dual-purpose guns

Which is preferable on a capital ship, the Japanese 100 mm Type 98 or the German 10.5 cm dual-purpose gun?

The 100 mm Type 98 narrowly wins as a gun, chiefly for rate of fire and reliability, while the 10.5 cm shell remains attractive.

The comparison separates the qualities of the complete mounting from those of its ammunition. The Japanese 100 mm Type 98 narrowly wins as a capital-ship dual-purpose gun because of its rate of fire and reliability. The German 10.5 cm weapon remains competitive, and its shell would be preferable if ammunition could be judged independently. Weapon choice combines gun performance with ammunition effect and service reliability.