Hi bigslug, I'm orginally from Port Arthur Tx. Kin folk had a patch of marsh just out side of the city limits. (a couple of hungred areas of marsh land) I was alouded to go and shoot the C&B pistols that I had at that time.(I don't remember what models or even what calibers.) but nutria where fairly plentyful and once in a while a rabbit would jump up. every once in a while we(a friend and I ) would shoot a nutria and once we got a rabbit. all where one shot kills. once we even got two nutria's! ok, and we shot at a lot of them. after jamming up the guns with black powder we'd wash them off in a bar ditch dry them off as best we could, load them back up and go hurting some more.(All that land is now the city dump) and this was the time of Crisco over the ball in the cylinder.and yes, this was about 45-50 years ago.