This is a link to the Tandy Leather Library: "Full size patterns for a flint wallet, prairie shot pouch, stand-up ball bag, wood spout ball bag, shooting bag, english shot pouch and tool roll. Also instructions on how to make a vent pick, flint knapping hammer, turnscrew and pan brush."
https://tandyleather.com/blogs/leathercraft-library/black-powder-bags-and-pouches-1966
https://tandyleather.com/blogs/leathercraft-library/black-powder-bags-and-pouches-1966