On Tue, 5 Feb 2013 09:49:59 -0700, "Steve B" wrote:

I want to make a noisemaker air tank cannon by cutting off a tall O2 bottle.
I don't want to fire any bowling balls, just create a loud boom for New
Year, and 4th of July. Would it be better to use gunpowder or Acetylene/O2
mixture? I am considering of using an inflatable 99 cent ball to block the
barrel, just charge it, insert the ball, inflate, and fire. Leave it
hanging on a rack when not in use, and call it a bell, in case anyone should
investigate the sound of the report.

Steve

Acet/O2. Its gonna be far cheaper to fire repeatedly.

And if its pointed upwards..really doesnt need the beach ball.

Black powder is about $20-25 a pound these days IRRC..which gives you
about a 16-32 shots per can.

Gunner

The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie