Read that someone was using card bored cards cut from cereal box between powder and bullet. I want to make a cutter to try this. What diameter should I aim to cut for a 50? Don't you want the card to be a little larger then bore size? What type of felt do you cut for a felt wad. Seems felt is classed f1 - f9. And I assume 1/8 inch felt is enough. No reason to have thicker then that. Trying to ring out accuracy from Maxi's and these seem to be 2 things to try. Thank you