I use à 670 ball with 100 grains of 2F powder wrapped in paper. Tear the end off, dump some in the pan and the rest down the barrel. Followed by paper and ball.
Take a hole saw and grind the teeth off and sharpen the edge. I used a drill press but a hand drill would work. Fold the cloth up and slice thru it. I can make hundreds in minutes.
Thank you and the range is the St. James Parish police department shooting range and training center. The range is open to the public the first two Thursdays of the month. Free. My buddies and I usually have it to ourselves.