Well after this gun was passed on to me almost 18 years ago I finally shot it this weekend. .315 round ball 20gr of pyrodex and a cut up tshirt I "lubed" with vegetable oil, read this on a site some guys do this that make their on patches, not really as accurate as I thought to be but I think my patch is to thin cause all I found had burn holes around the ball. Find a thicker tshirt and mess with powder charge might be in buisness