I've owned a couple of Winchester 1886 in .33 Winchester caliber, I reloaded for both. I bought dies from RCBS and formed cases from .45-70 brass. At the time in the late 70's Hornady made a flat point bullet especially for the .33, they've been discontinued for years. There are sources for .33 bullets just have to ask someone who currently loads for the round. From time to time components show up here on the 'Fire, a wanted ad in the classified section might bear fruit.