Well I finally got my 1885 High Wall in 45-70 that I have been wanting and waiting for, for quite awhile. I want to load my cartridge for this firearm with blackpowder instead of smokeless. My question. Where do I find info on loading the 45-70 cartridges with black powder. I may be just not looking in the right areas, but my reloading manuals do not show any. I want to use black powder or one of its subs. I shoot CAS and want to use this fine rifle for long range shooting. Any help would be appreciated. Thanks, joe