Han Patriot
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https://www.popsci.com/an-electromagnetic-arms-race-has-begun-china-is-making-railguns-too
. 12mm bore means, it's marble size projectile. ![Rofl :rofl: :rofl:](/styles/default/xenforo/smilies/rofl.gif)
http://ci.nii.ac.jp/els/contentscinii_20171108172120.pdf?id=ART0000352736
Japanese experiment in the 1990s, speed around mach 13.
Been there done that.This early Chinese railgun or coilgun (pre-2005) is part of Chinese electromagnetic research, which began in the 1980s. While railguns are relatively simple to build, the difficulty lies in scaling them up, as well as making the barrel durable enough for multiple firings.
Chinese Internet, via Strategy Center
![Cool :cool: :cool:](/styles/default/xenforo/smilies/cool.gif)
![Rofl :rofl: :rofl:](/styles/default/xenforo/smilies/rofl.gif)
http://ci.nii.ac.jp/els/contentscinii_20171108172120.pdf?id=ART0000352736
Japanese experiment in the 1990s, speed around mach 13.
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