I use an automotive gasket punch that has been modified (enlarged and sharpened) to the proper diameter. Mount it in my drill press. I use the "protection" board from packages of print paper (similar to the board on the back of legal pads), 24" x 36" and 30" x 42" in size. I can get over 5000 wads from a 30" x 42" sheet of board. The boards do vary in thicknesses, from about .024" to .070" depending on print paper manufacturer. No reason you can't do the same with milk cartons, jugs, felt, EPDM or even newspaper. There are a lot of ways you can make this BPCR game (sport) less expensive - make your own wads, make your own lube, cast your own bullets, in addition to loading your own rounds. I do all of that and can load 100 rounds of 45-70 for about $13 or $14. Have fun and good luck . . .