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A comment on The Navy's Railgun is finally dead.
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:
https://marspedia.org/Mass_driver
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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:
https://marspedia.org/Mass_driver