You have levers, single shots and a few bolts. The Ruger #1, NEF/H&R Handi Rifle, and Thompson Center are all single shots. There was a company converting Enfields to 45-70. I think it was Gibbs if I am not mistaken. Haven't heard anything about them in a while. There are also a few Siamese Mausers which were converted to 45-70, but I haven't seen one in forever. If I had to buy a 45-70 today it would be a Marlin lever, then followed by a Ruger #1.