Speaking of naval-based railgun, I would like to refer to this article by Popular Mechanics about the US Army canceling or halting the railgun R&D program just a barely 2 months ago, which allegedly can engage targets up to around 1000 miles (1609 kilometers) away:
And this article regarding China's experimental railgun progress by SCMP:
From what I could gather online, the experimental railgun onboard the Type 072-III test ship managed to hit a target 250 kilometers away in a test somewhere off China's coast. The test was conducted in Febraury 2018.
If naval-based railgun technology can be refined and enhanced enough such that power generation and storage alongside wear and tear becomes less of an issue and more of an inconvenience, could railguns in the future with even longer range than the experimental railgun on the Type 072-III test ship be placed onboard PLAN destroyers, in particular the Type 052D, Type 055 and future destroyer classes?
I believe that the railgun could potentially complement, and even replace certain ASuMs and LAMs according to their respective ranges, such as the YJ-18, if the railgun can have its range upgraded to around 500-600 kilometers. This would be very beneficial in freeing up more valuable VLS spaces, which could then go towards fielding AShMs with even longer ranges (such as YJ-21) and more AAMs plus ABMs?
If the naval-based railgun can shoot upwards of more than 1609 kilometers away, it could even complement or replace the YJ-21, while the freed-up VLS spaces could go for even longer-range ASuMs (such as the currently under-development naval-variant of DF-17), apart from the same, more AAMs and ABMs as mentioned above.
Of course, we could have more railguns installed per ship, and (jokingly) half-return to the dreadnaught era where big guns once ruled the oceans before planes snatched that role away in WW2.
So my question is - Could such platforms ever go onto a warship? If so, around when? And how effective and viable would such platform be?