Here's 300 Pounds of Tannerite Exploding (VIDEO)
If you're not familiar with Tannerite, today's video is the perfect introduction.
In a nutshell, Tannerite is a binary explosive substance used for target practice. It's totally stableuntil you shoot it with a high-velocity round, at which point, it explodes with awe-inspiring ferocity.
The resulting explosion produces a huge vapor cloud and loud report, meaning you know with absolute certainty that you've hit the target. No need to walk downrange.
Today's video is pretty much the pinnacle of Tannerite awesomeness. These guys piled up 300 pounds of the stuff (or so they claim), and, from a safe distance, shot it with a .50 cal. rifle.