Through the centuries, it was not that uncommon for smoldering embers to ignite the new charge while ramming the bullet, especially when rapid reloads were required in battle.
Soldiers were trained to hold the ramrod between their thumb, index, and social fingers. In case of discharge, this would allow the rod and bullet to pass between the fingers, with minimun loss of flesh and bone. It is still a good idea to do it this way.
Also, NEVER charge directly from your horn or flask. ALWAYS pour new charges into a measure, then from the measure into the bore. WW II grenades were powered by 4 ounces of black powder. I would not want my hand wrapped around a flask that exploded !
Chris D. They only blow down barrels in the movies. Please, Do not do this. If there is a smoldering clump of oil fouled powder, the rush of air may well set it off, and there is NO WAY the human mouth can contain a large volume of expanding gasses. A closed casket ceremony is guaranteed