http://ohgizmo.disqus.com/enSat, 23 Feb 2008 02:01:23 -0000http://www.ohgizmo.com/2008/02/22/25-inch-cannon-really-goes-boom/#comment-1765923<p>yeah i built one awhile ago it worked great. but when i modified it to use pure oxygen and propane then it became a real noise maker.</p>DevinSat, 23 Feb 2008 02:01:23 -0000http://www.ohgizmo.com/2008/02/22/25-inch-cannon-really-goes-boom/#comment-1765922<p>Probably a lasting impression....</p><p>Complete with a lawsuit</p>Jesse LeeFri, 22 Feb 2008 22:31:27 -0000http://www.ohgizmo.com/2008/02/22/25-inch-cannon-really-goes-boom/#comment-1765924<p>I had one of these as a kid - but it wasn't anywhere near $150 (amazing inflation). It's body was made of two shells of really heavy cast iron and a decent milled barrel. I used to plug the end with acorns and shoot them around, going deaf in the process (this was the 60s, so it was allowed)</p>Jim in HollandFri, 22 Feb 2008 05:05:43 -0000