I shoot a lot of blackpowder. The vast majority of my shooting requires it. Granulation is not particularly sensitive. For shotguns, I tend to use whatever odds and ends and odd, lots and door prize black powder. I have laying around. However, black powder cartridges can be a bit capacity challenged, and 3f, will work well there.

A few reputable, blackpowder cartridge shooters have tried four f in case is as large as forty five seventies and maybe larger. It did not produce anything dangerous, but it also did not provide anything like accuracy either.

In rifles, I generally prefer 1.5 and 2F for everything from a 25-20 single shot to a 45-100 (aka, 2.4").

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BrentD, (Professor - just for Stan)
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