Never to hijack this thread but a colleague of mine that provides ammunition suggests the Federal 210M primer. Why, I do not know as he was hoping not to offer me proprietary information. I'll make use of the Lee Hand Priming Instrument After i get all-around to utilizing the Feds. https://federalprimersfor22380123.bloggazzo.com/31118378/examine-this-report-on-federal-gm150m-primers