On my hunting guns I do use the patch box, I put a small forged screwdiver, extra flints with lead wraps, cleaning jags, vent pick, and jute twine to tie it all in so it will not make noise.
It seems the plains rifles shorter barrels is somewhat of a mystery to me, I would have thought that the Eastern Longhunters would have benefited more with shorter barrels, vs the plains hunters. The saying "Need Dictates Change" comes to mind, I think by the early 1800's they did not see the "need" for longer barrels, in the east the calibers got smaller and the west they got larger. Plus in the west travel was done IMHO more by horseback, and a shorter overall gun would be easier to deal with. The east was way more forested and in some parts not horse friendly. I also believe Cost may have been another "need" as a longer barrel just costs more to produce and uses more Iron. Plus if barrels were shipped west, it stands to reason that for the same shipping weight one could have more barrels arrive in the shorter type VS the longer type for the same cost.