goathunter wrote:Spudfarm: Have you considered a diesel type approach?
Why not have a combustible mixture in a piston with a burst disk to the barrel and ram a piston down to initiate the cycle?
The idea of applying the concept of forced diesling to projectile firing is not new and was once a commrcially viable idea in the shape of the Weihrauch Barakuda, however it has long since been superseded in both power and practicality by PCP rifles.
As to the "engine gun", I remember proposing back on spudtech that a set of rotating barrels be hooked up to an air engine in such a manner that the exhaust gas would vent through the barrels to give an air-powered pneumatic gatling, but I guess it's one of JSR's ideas and we just know that it won't work, because....
Hmm should I make fun of a sick man I wonder?