The loading limits of a twin 24-inch naval turret

How quickly might a twin 24-inch turret fire between 1910 and 2026?

The estimate is roughly 70 to 90 seconds per sustained round, perhaps one per minute from ready ammunition, with limited early scope for improvement.

Handling ammunition for a 24-inch gun would limit the sustained firing cycle. The estimate is one round every 70 to 90 seconds, with about a minute possible while using ready rounds. Little improvement is expected through the first half of the twentieth century, and substantially faster handling is not anticipated before computer systems become available around the 1980s. Comparison with 20-inch guns puts the best case in a similar ballpark, with the larger weapon expected to be slower. No separate rate is supplied for every requested decade.