The pin-fire (or pinfire) is an obsolete type of metallic cartridge used in firearms, where the priming compound is ignited by striking a small pin that protrudes radially from above the base of the cartridge (similar in appearance to, and vulnerable to impact as a Hertz horn on a Naval Mine). Invented by Frenchman Casimir Lefaucheux in early 1835, it was one of the earliest practical designs of a metallic cartridge to hasten the loading and firing process of a firearm.
The pin-fire (or pinfire) is an obsolete type of metallic cartridge used in firearms, where the priming compound is ignited by striking a small pin that protrudes radially from above the base of the cartridge (similar in appearance to, and vulnerable to impact as a Hertz horn on a Naval Mine). Invented by Frenchman Casimir Lefaucheux in early 1835, it was one of the earliest practical designs of a metallic cartridge to hasten the loading and firing process of a firearm.
Source: Wikipedia "Pinfire cartridge" · CC BY-SA 4.0
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