If you call 419-281-2557 and ask for the gun deparment .. that is Fur, Fin & Feathers by the way, they checked for me,and found a whole new supply of them Knight Disc Extremes with the stainless steel fluted barrel in .50 caliber in the basement (it took him a while to go look). And they have the red primer holders in stock to (although you get 20 of them with the rifle .. like that would hold me). And do not ask me how I know all this. I'm embarrased enough about giving in to my weakness...[&o]