The choice of FFg or FFFg depends more on what you have in stock. Either works, FFFg will give slightly more velocity. As for that, you don't mention if you're shooting a rifle or revolver. Look for 1100 or so FPS in a rifle and 850 fps or so in a revolver. Nothing absolute, but that'll be in the ballpark. Pistol primers work fine. Normal crimp. As for powder charge, in those cases I set it up for about .100" or so compression. It's not critical as long as you have some compression. I use the belling die to compress the powder, I have a shim to allow it to do that and also bell the case in two different operations. Case life seems to be forever, as long as you clean them well. I deprime and wet tumble cases in a Thumbler model B to clean. BP will cause cases to stretch, so ocasionally you have to trim them to length.
Now, the important thing. Bullets. They need to be soft, no harder than air cooled wheelweights and preferably lead:tin mix. 1:20 or so works fine. Soft, black powder compatable lube. SPG or homemade, no nitro lube and really no hard crayon type lube. As big a lube grooves as possible, especially in the rifle. You want to keep that fouling wet. If the muzzle is showing hard dry fouling the accuracy will go to heck. There are lots of designs that work, but Dick Dastardly's "Big Lube" bullets are some of the easiest to make work well. I recommend his designs highly. Don't go using commercial hard cast bullets or you'll be very unhappy with the results.
Beyond that there's nothing to it. Load, shoot, and have fun!
