I never knew this, interesting. YouTube - Girandoni air rifle as used by Lewis and Clark. A National Firearms Museum Treasure Gun.
The rifle was a work of art at the time it was made .The workmanship was one of kind at the time compared when it was made
Wifey Was Impressed! My wife saw the presentation on youtube before me and she then sent it to me. We discussed it at some length; she was amazed by the technology and the capabilities of that weapon for its time. Frankly, I ditto'd everything she said; it is simply amazing and the story that it tells about our history is one I had never heard before. Definitely worth check out!