A 15-inch King George V design could simplify guns and logistics

How would the King George V class change if the 14-inch gun agreement failed?

Britain might choose a 16-inch or 15-inch design; a 15-inch/45 route could use triple turrets, improve older 15-inch ships, and share ammunition more easily.

Without agreement on 14-inch guns, Britain would need a different route rather than accept an inferior standard. A 15-inch design could avoid the King George V's quadruple-turret problems and make use of a lighter, more modern 15-inch barrel. The lighter 15-inch/45 could also offer an upgrade path for existing 15-inch ships. Sharing ammunition across the old and new vessels would simplify logistics as well as armament production.