For a long time my LGS has had that "tannerite" exploding target mix, and recently I decided I might give it a try and see if it's really worth the money. I made I'd say about a quarter pound mix, grabbed my trusty M1 Garand, went to my backyard range, and set it up at about 100 yards away to be safe. I was thinking the blast would be just a tad louder than the report the M1 creates, but WOW, it was maybe 4-5x as loud. I was very surprised such a small amount would be so loud. Still nowhere close to how loud the frag grenades I threw a at Army BCT were, but I think next time I'll use these in a more remote area since I live FAIRLY close to my neighbors. Does anyone have any experience with detonating larger amounts of the stuff (like a pound or more)?