The unfulfilled autoloading King George V battery

Did the King George V-class battleships receive autoloaders for their main guns?

No, although an ambitious concept paired autoloading quadruple 14-inch turrets with sixteen guns and a very high rate of fire.

The completed King George V-class ships did not receive main-battery autoloaders. The more ambitious concept imagined four quadruple 14-inch turrets with rapid mechanized loading and fewer gun crews. Sixteen guns firing at the hoped-for rate would produce a broadside effect comparable in rough weight to twelve 16-inch guns. The practical difficulty of making the quadruple mounts reliable prevented that theoretical advantage from becoming the class's reality.