How rivals would answer a British battleship autoloader

If Britain developed a working heavy-gun autoloader, would other navies copy it?

They would try, but reliably duplicating and deploying a battleship-scale system would take time and sharply raise naval costs.

Other navies would certainly try to copy the system, but a battleship autoloader would be harder to reproduce and install than centralized fire control. Even when rivals understood the idea, engineering it reliably and fitting it across a fleet would take time, creating a costly technology race and a temporary British advantage.