Modern battleship shells would be guided weapons

If battleships still existed today, what would their 16-inch gun capability look like?

Modern battleship shells would likely be self-guiding, GPS or laser guided, and part of a broader missile-age weapons environment.

A modern battleship gun would serve as a delivery system for guided munitions rather than continue Second World War gunnery unchanged. The proposed shells use GPS, laser guidance, and other targeting systems. Their value would still have to be judged inside a weapons environment dominated by missiles and aircraft.