The high-velocity 6mm rifle that leapfrogged the world's military technology

Wars & Conflicts · Published 16 October 2026 · Updated 25 October 2026 Swipe more like this →

In short: In 1894, the U.S. Navy decided to skip the standard evolutionary steps of small arms development. By adopting the M1895 Lee Navy, they embraced a high-velocity, small-bore, smokeless powder rifle that promised unprecedented speed and accuracy, challenging the established infantry doctrines of the era.

Driven by a desire to match the world's leading naval powers, the U.S. Navy convened a test board at the Naval Torpedo Station in Newport, Rhode Island, on August 1, 1894. The goal was to adopt a modern, small-bore rifle utilizing the new 6mm U.S.N. cartridge. This ammunition featured an early smokeless powder and a semi-rimless design, a deliberate choice made by naval authorities to ensure the cartridge would function reliably in both clip-fed rifles and the Colt–Browning Model 1895 machinegun.

The competition featured several notable designs, including the Luger rifle and various Remington turnbolt models. While the Luger performed excellently, it failed to meet specific government requirements regarding cartridge rim dimensions. Ultimately, the Lee straight-pull design was selected because of its strength, simplicity, and its superior clip-fed mechanism. Unlike the Mauser system, which required cartridges to be stripped from a clip, or the Mannlicher system, where the clip was essential to the magazine's operation, the Lee system allowed the clip to drop away once the first round was chambered.

Despite its technical advantages, the M1895 faced significant logistical hurdles. The first contract for 10,000 rifles to Winchester faced delays due to manufacturing issues and ammunition specification changes, meaning Marine battalions did not receive their weapons until 1897. Furthermore, the Marine Corps faced a shortage of ammunition, with the Quartermaster requesting $10,000 in additional funding just to enable live-fire training. While the rifle was capable of incredible rates of fire—tested at 71 shots in two minutes—it was also criticized in the field for fragile components like the firing pin lock and the floating extractor.

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