what kind of powder can cause serious injury if used in a muzzleloader?
Powder (duplex loads) or the wrong type or granulation of Black Powder or. Pyrodex or overloading may cause serious injury and/or death to the shooter. or bystanders and damage to property. See section on âBlack Powder and. Pyrodexâ in this booklet. Thompson/Center muzzleloaders are designed and intended.