"Karl Townsend" wrote in message
...
I'd suggest propane. One of those little benz-o-matic cans costs a
couple bucks and can be mounted right on your weapon.

I want nothing on the device. It will hang there on a frame as a bell.
When in use, I will point it at a 45 degree angle towards town, and fire it,
then drop it back to being a bell. Don't want any evidence for when the
cops of FD come out looking. Want to put a piece of duct tape over the
input hole, use a piece of cannon rope fuse, and use an inflatable rubber
ball to seal it in, so I can fire it remotely from inside the house. I have
read that the report on these can go upwards of 150 db.

When I had my gopher cannon running, I got a couple of reports that rolled
like thunder around my canyon for several seconds.

Steve