Hatcher did some work in that area and said it could be done. But in those days men were men and some of them were Superintendant of Springfield Armory. We are more cautious now.
Just as a subject for discussion, I don't think half a grain of powder would be enough for a jacketed bullet. Cast maybe.
As Steveno says, if you try it with your gun, let us know if it works.
Pick out the wax plug first, that might be enough to ring the barrel, and hold vertical.
Y'all be careful, now, you hear?