Never to hijack this thread but an acquaintance of mine that generates ammunition suggests the Federal 210M primer. Why, I do not know as he was seeking not to offer me proprietary info. I will use the Lee Hand Priming Device After i get around to using the Feds. Ken, https://franciscomksce.tokka-blog.com/32071267/the-federal-large-pistol-primers-no-150-diaries