The Paper Patched Bullet Way
imho - while there is a little bit of an initial learning curve, bore rider PPBs will have a much easier black powder cartridge build process, with no concern over the cartridge OAL (because there is none). i've totally abandoned greasers in favor of going the "PPB Way", as Brent has so aptly labeled it. most greaser barrel chambers will work fine for ppb's, and it will come down to the bullet diameter, and the wrapping paper thickness. while grooved bullets will surely work well, a slick bullet will work best for long distance accuracy. randy wright's PPB booklet is the best out there. it dwells mostly on using grease cookies (which are probably best for hunting), but he does talk about going straight to a single wad. using a single wad will turn a .45-70 into a virtual .45-90 because the ppb is seated in about .100" to .180" - yep, that shallow - and with a single wad yer looking at drop tubing over 80 grains of yer favorite 1-1/2f. for short distance shooting (200yds or less), i use a series of dry wads to take up powder space, and a good 20 grains less powder charge. do consider at least trying out the PPB Way.