The Corps toiled three weeks constructing Fort Clatsop where they spent 106 wet miserable days preparing for their return trip.
There were 94 rainy days, 12 dry days, of which 6 were sunny.
One of three enlisted mens quarters
Lewis and Clarks quarters
William Clark's journal tells that when they encountered Native Americans he would demonstrate his air rifle. I wondered how that was impressive. I found out. A replica was demonstrated at Fort Clapsop.
The gun's air supply is stored in the stock.
Unscrew the stock
Attach a handle and pump 1,500 times.
I doubt that Clark pumped up his gun. As they say, "rank has its privilege". All that labor created a 600 - 700 psi reservoir.
22 lead ball go into the magazine on the right side of the barrel
Push the bar again for repeated shots. The gun's air supply can fire 70 balls before having to be recharged.
Loading another ball into the breach
This is a fascinating rifle and I now understand why it was so impressive. One could silently emptying the entire 22 shot magazine in 30 seconds. It could fire lead balls clean through a 1 inch pine board at 100 yards.
William Clark's original rifle now resides in Dr. Robert Beeman's air gun collection.