Wiktionary
n. (context firearms English) An obsolete kind of brass cartridge in which the priming compound is ignited by striking a small pin which protrudes radially from just above the base of the cartridge.
Usage examples of "pinfire".
General Jackson carried a Lefaucheux Brevete pinfire revolver, twelve millimeters, which translates to roughly forty-five calibers.
With a pinfire gun, the hammer strikes the pin and drives it into the cap.
This emblem was repeated, stitched in pinfire glints of bullion, on the black surcoat of the man who stood beside that crib, head bent and silent as a statue, looking down at its sleeping occupant.
Beside one outflung hand was an old LeMat revolver, the type that used pinfire cartridges.
Do you remember that time you gave a Venusian guppy a can of condensed milk in exchange for a pinfire opal not as big as the city clock?