Final answer:
Fg corresponds to 0.45 caliber or larger firearms, FFFg is for medium-sized firearms, and FFFFg is for small, compact firearms.
Step-by-step explanation:
Fg, FFFg, and FFFFg are classifications used to describe different sizes of black powder used in firearms. These classifications are based on the particle size of the black powder grains.
- Fg refers to powder with larger grains, typically 0.45 caliber or larger. It is used in larger firearms such as shotguns and some rifles.
- FFG (also written as FFFg) is a medium-sized powder, with grains smaller than Fg but larger than FFFFG. It is used in smaller firearms like handguns and rifles.
- FFFFG (also written as FFFFg) is the finest black powder, with the smallest grains. It is used in small, compact firearms like pistols.
In summary, the classification of Fg corresponds to 0.45 caliber or larger firearms, while FFFg and FFFFg are used in smaller firearms.