I respectfully disagree, when it comes to "about 1875" being a cut-off date for the manufacture of such rifles. I recently bought a very nice fullstock percussion rifle, by an Indiana maker, dated 1889, and an Iowa-made percussion schuetzen dated 1881. I was also with a friend recently, when he bought an iron-mounted Tennesse rifle dated 1886, at an auction. Henry Goedeke, gunmaker in Olney, Illinois, didn't open his shop until 1873, yet his rifles are fairly common. He is said to have still made a few muzzle-loading rifles for local customers as late as 1903. The era of "local gunmaker" didn't end overnight, it was a slow and gradual thing.