Browning began developing his .50-cal. machine gun when he was 63 years old. Shown above is an early water-cooled version. His air-cooled model armed every American aircraft in World War II and remains in use today worldwide. Image courtesy of Museums at Union Station. Anything a person might…
Thinking In Three Dimensions: The Genius of John Moses Browning | An Official Journal Of The NRA – American Rifleman

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