Wad Materials For your Black Powder Cartridge loads. Using wads made from the materials of vegetable fiber or low density polyethylene, I have recovered undamaged bullets from the snow and found the base of the bullets to be perfectly protected. Unlike many other materials I have tried, these are consistent top performers. These materials have been used to win at least one World Championship, eight National Champships, three State Championships and set numerous National records. Once a well kept secret, now available only here. NO OTHER MATERIAL COMES CLOSE!