I was off on vacation at my swamp last week. I got a few afternoons of good shooting in. I got to try out my newest self made boardcut fork using 1/2' glass, steel, lead, and M10 hexnuts. Tore two aluminum cans into twisted wrecks playing follow the jumping can with the marbles and got to test some Gopher Slingshots TBG (TBG 11/16" W by 6" L) bands against 1/4" plywood with glass, steel, lead, and hexnuts. The glass made a small dent with no backface deformation at 10'. Steel punched neat holes with little spalling on the backface. Lead punched larger, rougher holes with significant backface spalling. Hex nuts made a deeper dent than the 1/2" marbles, with significant backface deformation. I was also getting fork hits with the hex nuts. One hit on the left side of the fork and just made a dent on the fork. Two hit in about the same spot on the right, the second once cracking the frame all the way through and knocking the lucky penny off the front. The image isn't the best, but the dark line along the right hand side of the handle is the crack. In terms of overall impact, I think the hex nuts delivered the most force, but I really liked the effects of the lead, too. Making the cans dance was a lot of fun, as well.