Best all round powder for 45/70

[daBear]

I am with Mikey on this one. I use AA5744 when not using black powder.
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[supernova]

H4198 is my top pick for 350 jacketed loads. In my 18.5" 1895G it runs almost exactly 100 fps faster than IMR4198 with similar maneagable recoil. Max loads run 2002 fps avg with IMR and 2103 fps with H4198. I'll be settling around 2000 fps with the H4198 for my squirrel/clown defense load with modest pressure and longer case life. I'll probably use up the IMR4198 for reduced loads.