Standardizing the Royal Navy on the 4.7-inch gun

What changes if the Royal Navy standardizes on a high-angle 4.7-inch gun instead of developing 4.5- and 5.25-inch weapons?

Cruisers, destroyers, and perhaps carriers would share one gun, simplifying factories and logistics and increasing output and volume of fire at the cost of range.

Using one dual-purpose caliber across Dido-class cruisers, Tribal-class destroyers, later escorts, and carriers would concentrate manufacturing and ammunition supply. The tradeoff is a shorter-ranged weapon, but far more mounts and rounds could be produced from the same industrial base.