Not all grave robbery deterrents involved ammunition
How to protect dead bodies from grave robbing? One clever 19th-century solution was the coffin torpedo. The Atlas Obscura article has all kinds of good stuff.
One model was designed to work like this:
Philip. K Clover, a Columbus, Ohio artist, patented an early coffin torpedo in 1878. Clover’s instrument functioned like a small shotgun secured inside the coffin lid in order to “prevent the unauthorized resurrection of dead bodies,” as the inventor put it. If someone tried to remove a buried body, the torpedo would fire out a lethal blast of lead balls when the lid was pried open.
Another had a related yet different approach:
[F]ormer Circleville probate judge Thomas N. Howell, patented a grave torpedo of his own on December 20, 1881. Unlike the Clover torpedo, Howell’s gadget was a shell buried above the coffin and wired to it. This worked like a landmine and would detonate when thieves ran into the wiring.
This, global friends, is how Americans defend their dead:
“Sleep well sweet angel, let no fears of ghouls disturb thy rest, for above thy shrouded form lies a torpedo, ready to make minced meat of anyone who attempts to convey you to the pickling vat,” read an advertisement for the Howell torpedo.
(thanks to Thomas Burkdall)