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Black Powder Chart ShowingAppropriate Use Of TheVarious GranulationsFG (commonly called Single “F”)The muzzleloading enthusiast finds little use for thisvery coarse black powder. Its use is restricted to thelarge bore (10, 8, 4 gauge) shotguns of yesterday.FFG (commonly called Double “F”)This is a very popular for the larger (.45 to .58) caliberrifles. It is also used for 12, 16, and 20 gauge muzzleloadingshotguns. While it is not considered a pistolpowder, it is sometimes used in very large calibersingle shot pistols.FFFG (commonly called Triple “F”)Due to its wide range of uses, Triple “F” is the blackpowder that is most commonly found on a dealer’s shelf.It is used in all percussion revolvers, most single shotpistols, and most of the smaller (under .45 caliber) rifles.In a pinch, it can also be used to prime a flint lock.FFFFG (commonly called Four “F”)The finest of all currently available black powders,Four “F” is best used for priming flint locks.Due to its limited use, it is sometimes difficult to obtain.13