One of my favorite cartridges has to be the 50-70.
Been around since 1866, the cartridge not me, and still outclasses most of the newer ones.
My method of loading in not real scientific but it produces good results.
Using an empty cartridge as a scoop, I scoop up a full case of black powder, FFg.
Pour that measure of powder down a 30" tube into a primed case.
Next in is a grease cookie made of a cardboard wad (cereal box or similar), a grease disk and another cardboard wad.
Now the bullet, I cast Lyman 515141 and the Lee 515450, lubed with the same lube as in the grease oreo.
I am currently using a trapdoor rifle so I don't need to crimp but don't see why you couldn't use a light crimp.
Any one else load the 50-70?
And here is my trapdoor.
Let's see more of them.