"Wartime and immediate post wae cartridge cases WERE MADE OUT OF COPPER. Copper cartridge cases have a tendency to "stick" in the chambers of hot weapons-ask General Custer's troopers about that one!"
Yes and no.
Burnsides and Gallagher cartridges were made of brass during the Civil War. Peabody cartridges may also have been made of brass.
These, obviously, were externally primed.
Gallagher cartridges were "spun," an earlier alternative to deep drawing (think of a potter molding a piece of clay on a wheel) while Burnsides cartridges were punched formed from thin brass foil.
Hiram Berdan and Edward Boxer both patented their centerfire primer systems in the 1860s.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.