Along those same lines......a single grain of stick powder (IMR4350 etc) will pop when whacked with a hammer.


As a kid, I figured that a "dud" black cat firecracker was just a big cap......hit it with a 4 pound sledge to find out and BOOM!!

If you try this (and I KNOW some of you will), be sure you: 1)wear ear plugs and that 2) you are quick enough to avoid the hammer as it is blown back towards your forehead!!! grin