About 20 years ago friend of mine had one of the original
smooth bore india type carbines with a very crude rear sight,
at the time we did not have a 69 cal. bullet mold but I had some
soap stone and a dremmel... the bullet was not perfect
but it worked I worked up a load of 45 grains of fffg and could keep a group
on a dinner plate at 100 yds! not bad with what I had to work with.