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a-zA-Z0-9$_.+!*'(),- writes:

The Motley Fool's Rich Smith writes:

For more than three years now, I've been tracking the U.S. Navy's progress toward building a working electromagnetic railgun prototype — a Mach 6 cannon reputedly capable of striking targets 110 miles away with pinpoint accuracy.

Each railgun projectile would cost about $25,000 to produce — and if you're keeping track, then yes, success on the railgun project would yield a weapon boasting nearly twice the 67-mile range of Boeing's (NYSE:BA) Harpoon II missile but costing just 1/48th the Boeing missile's $1.2 million cost.

https://www.fool.com/investing/2017/04/22/navys-new-mach-6-em-railgun-almost-ready-for-prime.aspx

Electromagnetic Railgun - First shot at Dahlgren's new Terminal Range https://youtu.be/Pi-BDIu_umo

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