I have a reproduction 44 cal. Remington 1858 black powder pistol that I want to shoot. It requires FFF black powder and I can't find any. Maybe it's been banned? I know there are synthetic powders available, but I'd like to use the REAL thing if possible. Are there any sources within an hour or two from the Portland area? Thanks for your time! P.S. If I can't find any, which black powder substitute should I use and how many grains?