Taylor Firearms has come out with a remake of the Spencer Rifle and Carbine in .56-50 and 45 Schofield caliber. It is a really sweet rifle and I am hoarding all my money to buy one of their Spencer Rifle models in .56-50 (I also want their Sharps "Quigley" model in .45-70).
1865 Spencer Rifle .56-50 or .45 Schofield
1865 Spencer Carbine .56-50 or .45 Schofield
Check Gunbroker.com if you are interested in finding one of these collectible guns.