Why a triple 6-inch turret was not ready for 5.25-inch guns

Could 5.25-inch guns be installed in an existing triple 6-inch turret?

They would fit, but the turret would need extensive changes to speed, precision, elevation, and depression before serving as an anti-aircraft mounting.

A triple 6-inch turret offered enough internal space to hold smaller 5.25-inch weapons. Space alone did not make it an effective dual-purpose mounting. The training and elevation machinery would need to move faster and with greater precision to track aircraft. Designers would also have to increase the available elevation and depression, turning the proposal into a major machinery redesign rather than a simple gun substitution.