This issue of BP Magazine has an article in it illustrating the latest muzzleloader called the "Ultimate" muzzleloader.
It uses a .45cal Winchester Magnum primed cartridge case which fits into a chamber designed into a breech plug, and uses four 50grain Pyrodex pellets as the standard load, and five 50grn pellets as the maximum load.
It uses a .45cal Winchester Magnum primed cartridge case which fits into a chamber designed into a breech plug, and uses four 50grain Pyrodex pellets as the standard load, and five 50grn pellets as the maximum load.