For use with the Remington Ultimate Muzzleloader ignition system, these primed shells are the driving force behind the 300-yard muzzleloader. Our first-quality, RemingtonA(R) brass is manufactured to the highest industry standards and comes packed in heavy duty laminated plastic pouches. A unique brass case with a Remington 9-1/2 large magnum rifle primer to completely seal the flash hole. 24 per bag.Packed in heavy duty laminated plastic pouches featuring: Zip type reclosable top sealMoisture eliminating desiccant