What type of powder should be used in a muzzleloader?

The appropriate type of powder to use in a muzzleloader is black powder or a synthetic substitute. This is because muzzleloaders are designed specifically to work with these types of powders, which have distinct characteristics that are essential for their safe and effective operation.

Black powder is a traditional propellant made up of potassium nitrate, charcoal, and sulfur, providing a high-energy output and a distinct amount of pressure. Synthetic substitutes, such as Pyrodex or Triple Seven, are formulated to closely mimic the performance of black powder while offering easier handling, reduced fouling, and safer storage options.

Using modern smokeless powder in a muzzleloader can create dangerously high pressures that the firearm may not be constructed to handle, potentially leading to catastrophic failures. Granulated powder, while it may refer to powder dimensions, does not specify the right chemical makeup necessary for use in muzzleloaders. Similarly, the term "any form of gunpowder" lacks the specificity needed, as not all gunpowder types are compatible with muzzleloader designs. Thus, for safety and optimal functioning, utilizing black powder or a synthetic substitute in a muzzleloader is crucial.