Me and dad went out with a new mix and tested it out over a bridge and with some old railroad ties.
Here are some video clips for your entertainment.
Don't Attempt to recreate, by any means.
Off The Bypass Bridge 60G
The Tire Pit and Rockets
The Railroad ties 80G - 180G
A 1 Gram Cracker and 17 OZ uncompressed
Regular Gunpowder 20G Vs. Flash 16G
Some Water Works
Metal Bin And A Echo 16G
2006