From Dixie gun works site. May be TMI.
Originally manufactured by The Royal Wurttemberg Gun Factory in Oberndorf from 1857 to 1862. Peter and Paul Mauser, who later developed the famous Mauser bolt-action rifle, were employed there at the time as junior craftsmen. In 1862, Marcellus Hartley, in Europe purchasing guns for the U.S. Government, bought 2,000 of these arms from B.M. Tambeur Freres of Leige, Belgium. This reproduction features a fullstock of European walnut 52" long with satin oil finish, 2 1/4" drop and 13 1/4" trigger pull. Barrel is .547 caliber, 39 3/8" long, ocatgon to tapered round 1.075" to .790". Rifled .006" deep, 5 lands .547" and 5 grooves .559" with 1-48" twist. Front sight is steel lug on upper band, rear sight is steel adjustable for windage and elevation. Steel furniture amory bright. Color casehardened lock and barrel tang, lockplate is engraved "KONIGI.WURT FABRIK", patent hook breech, 3 band springs, sling swivels. Steel ramrod with brass end. Uses musket caps. Load with 60 grains of FFg black powder and .535 patched round ball. Does have a half cock (safety) notch. Made by Pedersoli in Italy.
Pedersoli site says 1-55 twist rifling. I believe the hooked breech would be great for cleaning. :thumbsup: