I'ld suggest you take a look at a bullet 1.1 inches long, .434 diameter, wrap it in a 3/4 inch wide patch cut from 8 lb paper. Set it on top of a fiber wad ,030 thick, powder charges starting at 75 grs. of what ever blackpowder dijour you have on hand. Let the target tell you what needs done next. Use a grease cookie under the bullet and a thin wad between the grease cookie and bullet base, if you just want to blow tube between shots.