pnuematic mortar

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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spud yeti
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Joined: Tue May 08, 2007 1:41 pm
Location: Cape town south africa
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foam cores the one with bubbles in it.
But if you really have to use dwv, screw the fittings to the pipe to minimalise the pipe from blowing off.
really good quote/phrase here
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