How would a modern cruiser armed with modern versions of County-class guns compare with earlier cruisers?
Short answerIt would have far better fire control and range, with autoloading twins plausible; gun logistics remain a significant advantage.
NotesThe answer imagines twin autoloading cruiser guns and considers electromagnetic railguns. It also stresses that shells are easier to replenish at sea than missiles, so logistics still matters. Britain, Italy, and Japan are presented as bringing complementary guidance, gun-stabilisation, metallurgy, and electromagnetic experience to railgun work. A modern heavy gun offers range and accuracy together with a magazine that can be sustained more readily in a long conflict.