shiloh sharps sells a device called a blow tube and i think it is used to rid the chamber of an smoldering debris in the chamber before inserting a new cartridge.
wonder what then cowboy did? no wonder the indians had an advantage with the fast shooting bows & arrows over the muzzle loaders & some what faster breech loaders. i guess the metallic cartridges provided the fronterisman an edge.
i know muzzle loaders blow down the barrel just to be sure before dropping powder.
"When the government fears the people, there is liberty. When the people fear the government there is tyranny!" Thomas Jefferson
"They that can give up an essential liberty to obtain a little temporary safety, deserve neither liberty nor safety!" Benjamin franklin
The Armed Citizen PREVENTS tyranny!