Designed for in-line muzzleloaders with a 209 primer ignition system, this powder creates high velocities and unbeatable accuracy. BlackHorn 209 is the only non-corrosive muzzleloading powder. It’s non-hygroscopic, meaning changes in the temperature or humidity will not affect its performance (reduces misfires). It can be cleaned with regular oil-based solvents and does not require any special primer. BlackHorn 209 powder uses standard 209 shotshell primers. Because it’s non-corrosive, the need to swab between shots has been eliminated, increasing the amount of time in the field.