Great point, Coyote Joe! We all tend to solve " problems " involving the choice of firearms based on our current supply and resupply process. We also think in terms of sport hunting, and not subsistence living. You explain quite nicely why so many of the early explorers, who went into Kentucky, Ohio, Illinois, Indian, Alabama, Mississippi and Tennessee chose to take long rifles chambered for small caliber balls.
I recall reading an early diary where the author reported that the deer and wood bison were so unaware of the danger that humans posed, that hunters could walk to within a few feet to kill them. He complained that after several years of hunting the same herds, the animals began to shy away! When one pound of lead will cast almost 200 RB for a .36 caliber rifle, but half that number for a 20 gauge smoothie, it doesn't take a genius to understand why longhunters like Boone, Crockett, and Kenton, used the smaller caliber rifles. :thumbsup:
My first thought was to take a smoothbore, but I think you have convinced me that a small bore rifle makes much more sense. Now, how small bore the gun is will depend on what part of the country that extended trip takes place. I know some places where nothing less than a .50 caliber makes much sense. In others, a .32 or .36 caliber rifle fills the bill quite well. The caliber choice gets smaller, of course, the longer the trip is going to be, and the more walking is involved. Without a horse or canoe to carry extra supplies, weight becomes critical, as does the amount of powder used for any given caliber.
I agree with Roundball's comments concerning the carrying of shot for smoothbores. It takes a lot of heavy lead to feed a shotgun very long. I have no desire to carry a 25 lb. bag of shot to have approx. 400 shots from my smoothie in a subsistence situation. With round ball, shooting big game like deer, you can usually recover the lead ball and remelt it to use again. I don't know how you recover much lead shot from animals. :hmm: