Who is known for developing the first pinfire metallic cartridge?

The development of the first pinfire metallic cartridge is credited to Lewis Flobert. In the mid-19th century, he created this innovative cartridge design, which featured a firing pin that would strike the primer and ignite the powder within the cartridge upon being fired. This represented a significant advancement in ammunition technology at the time, transitioning from earlier methods that relied on separate components like percussion caps.

Flobert's design allowed for the integration of the primer and casing, simplifying loading and reloading processes for firearms, contributing to the evolution of modern ammunition. His work laid the groundwork for future cartridge designs, impacting firearm efficiency and reliability, making it an important milestone in the history of firearms and ammunition development.