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Looking at the various ship proposals that were floated through WW1 and towards the end of the decade, multiple various proposals were floated for the new generation of ships to replace those in the Navy's fleet. Some of the more well-known proposals were the South Dakota class Battleships (1920) and the Lexington class battlecruiser.
There was on design that I found more intriguing: an earlier (1915) design for a large scout cruiser built for speed and endurance while also using 10" guns. (4x2 in an ABXY layout). I was attracted to this one primarily because it seemed small enough to preclude the ships from being presumed to be used in a battlecruiser role, as they do not use battleship-class armaments, while having the range and speed to operate effectively in the Pacific (although being exceptionally large at 800 feet will make them large targets, but they would seem to be good future AA barges)
What I was wondering is if there was any future development of the Navy 10" guns? The last iteration I know of were the 10"/40 Mark 3s built in 1902. Was there any future gun in development along those lines and was there any ballistic profile that would be given by these guns? Could a 10" gun cruiser potentially become the standard for heavy cruisers instead of the 8" gun, especially given their historical use in armored cruisers, or was the shift inevitable?