Which of the following powders could cause serious injury if used in a muzzleloader?

• A. Modern smokeless powder
• B. Black powder
• C. Corn starch
• D. Salt

Answer: (A)

Using the right propellant in a muzzleloader is essential because these firearms are designed to work with a specific burn rate and pressure. Modern smokeless powder is far hotter and burns much faster than black powder, generating much higher peak pressures for the same load. The barrel, breech, and other components of a muzzleloader aren’t built to withstand that sudden energy spike, so using smokeless powder can cause the barrel to rupture or the firearm to explode, leading to serious injuries.

Black powder is the intended propellant for muzzleloaders, so using it as directed is the safest prepared option. Corn starch and salt aren’t propellants at all; they won’t provide reliable ignition or the necessary energy and could create misfires or other hazards, but they don’t pose the same immediate risk of overpressure that smokeless powder does when used in a muzzleloader.