Has anyone been watching this? I've been watching it for a few nights now, I can't get enough of it. It got to making me wondering about the rifles used from the Louis and Clark expedition on. I imagine most were possibly military left overs from the 1700's or possibly Eastern US made? What kind of cal. would they have been back then? All I have seen up to now have been flintlocks, when were percussion rifles introduced? This is my first post so don't be too hard on the new guy. Maybe some suggested reading on this era. Thanks