I forgot---lead. I'm using 2 1/2 12g 30gm Kent Impact TM No. 5 fibre shot cup, paper hull, 7500psi. A buddy few years ago laughed at these "pipsqueak" loads, ran out of shells, and I gave him a handful of TM. On his next shot, he made one of the best shots on black duck I've seen, way outside the tollers, and it made a convert of him right there!