The Navy's Railgun is finally dead
popularmechanics.com
popularmechanics.com
The only locations where railguns seem to make sense are in space, or low-gravity environments like the moon - specifically for launching cargo.
https://en.wikipedia.org/wiki/Mass_driver
Even on Mars, to reach escape velocity you would need a 200km long track:
It seems however that it's being deprioritized in place of hypersonic missiles, which are a frightening and potentially destabilizing technology in their own right.
I hope learnings from this railgun make its way into broad military power control electronics, and trickle down to consumers if there is value.