Try using felt OP wads. Make your own by purchasing some 1/8 inch thick hard felt from Duro-Felt (www.durofelt.com). Then purchase a set of cheap hollow punches from your local hardware store. You can punch out a lot of wads from a few square feet of Duro-Felt. The felt wads will keep the patches from burning through and, in many cases, will reduce fouling and improve your shot to shot consistancy. To keep fouling down, I put a drop of Ballistol on each wad. Don't use too much, you don't need very much. Just use enough to slightly dampen the wad. You will be amazed by the difference a snug fitting Ballistol wad will make.
Another idea is to put about 10 grains (volume) of either grits, cornmeal or Cream of Wheat on top of your powder charge. it weon't do anything to improve on your fouling but it will seal the burning powder from the patch. I know it sounds strange but it works and, no, it won't hurt your gun at all, It is a trick that has been used by muzzleloader shooters for years.