Why the 10-inch gun lost its place between cruisers and battleships

Renown's 10-inch battery leads into an argument about why an intermediate calibre can lose its place as ships grow. In this interpretation, by the dreadnought era it fired too slowly for cruiser work yet lacked the punch expected against battleships and battlecruisers. The comparison then extends to 12-inch guns in the Second World War, treating their effect as closer to heavy-cruiser armament. The Alaska class illustrates what a treaty-free heavy-cruiser line might have become. The argument links calibre choices directly to target set and ship type.