King , I have tried Goex 3fff , Swiss 2ff , Schuetzen 2ff and 3ff along with Graft 2ff ,and Pyrodex . Goex shoots good in my 45/75 fouling is an issue after a few shots in the 28" barrel guns ( need a wipe every few shots for accuracy ). The Swiss 2ff is awesome ,accurate and the cleanest burning powder I have used .The Schuetzen shoots well fouling is a bit less than the Goex , not bad. The Graft&Son 2ff may be Schuetzen powder in their bottle ,shoots well . The Pyrodex shot accurate has a good power level , drawback is hard fouling and very corrosive on the gun and brass . I still have a good supply of Swiss and shoot it most , but will order some Old E next , hear nothing but good about it . A friend makes his own home brew BP. and gives me a small batch every once in a while , it shoots as good as any , the way I shoot , slow and easy I noticed in my 45-75 I use a very light compression 1/8" or so no wad home brew lube wax/deer tallow or animal grease , and STD primers no Mag primers necessary . I clean my guns soon after shooting unless out in the pasture after a kill . Also wash my brass with a small brush in a bucket of soapy water , let dry and I'm done . Aint nothing like the roar of the 45/75 in a big old levergun . Have fun finding your favorite load. ,,,DT