GGDT Model of the huge coaxial

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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noname
First Sergeant 4
First Sergeant 4
Posts: 2698
Joined: Mon Apr 10, 2006 9:19 pm
Location: Bay Area, CA

If we had topics for every theoretical gun that someone threw into GGDT we wouldn't be able to navigate the forums anymore.
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