firestick
40 Cal
Google up Durofelt. They sell hard wool felt that works perfect. If you wish they have lanolin also for making patch/bullet lube. Prices are great IMO and they are great to deal with answering questions plus get after it when it comes to getting stuff shipped out to you. Try one of the scrap pieces in 1/8" hard gray to start with is what I would recommend.What do you make the wads out of? Felt obviously but what kind? I've never used them and would like to try.