What blackpowder is typically used in muzzleloading shotguns and single-shot pistols of .45 caliber and up?

The use of FFg black powder in muzzleloading shotguns and single-shot pistols of .45 caliber and up is most suitable due to its granulation size, which provides the right balance of burn rate and energy for larger caliber firearms. FFg black powder is coarser than FFFg and FFFFg, making it appropriate for larger bore applications where a slower burn rate is beneficial for producing sufficient velocity and pressure without causing excessive recoil or overpressure situations.

In contrast, FFFg and FFFFg are finer grades of black powder designed for smaller calibers and applications that require quicker ignition and faster burn rates, which are not ideal for the larger calibers typically found in muzzleloading shotguns and .45 caliber single-shot pistols. Fg is the coarsest grade and would generally be used in larger artillery pieces, not typical firearms like shotguns or pistols. Thus, FFg is the recommended choice for these specific firearms to ensure optimal performance and safety.