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self rifling pneumatic?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: psycix » Wed Sep 03, 2008 10:31 am

A sharp projectile could carve in a groove.
Now if that sharp tip is on an angle, the projectile will automatically rotate.

Its not a bad idea!
Maybe someone could create a piston with 5 (or more or less) slightly angled, sharp and sturdy fins on it.
The piston is airtight (o-rings) and the fins are actually a little bit larger in diameter then the inside of the barrel is.
Using pressure to push the piston through, the piston will rifle your barrel.
A new type of rifling machines!
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