Greetings!
Years ago, when I was working at the Gun Shop, we had acquired an estate, and all of the 'seconds' were piled on a skid in the middle of the warehouse. In the pile, I saw a big lever gun, and dug it out. It was a beat-up mid production Winchester Centennial, chambered for the .45-75-350, and I was allowed to name my price for it. It was missing its lever spring and rear sight; the spring came from "Mr. Winchester", and I installed a handy buckhorn rear sight that I had. I decided that .348WCF would be a good parent cartridge; Dad gave me a big handful of .348s that he had accumulated through the years, and after annealing and priming, I dropped a charge of Unique into each, followed by a wad of tissue, cornmeal, and another wad of tissue, with a dab of glue. For the most part, they fire formed well, and these I trimmed and cleaned up. I charged each case full with Pyrodex, and corked it all with a Lyman #457191. The pitted bore gave little hope of hitting anything, but actually, no coffee cans were safe out to thirty yards or so...
One of the greatest joys of resurrecting vintage arms is the creation of its ammunition, and I'm delighted to see You doing that for yours!
M.T.M.
6-05-22