That’s a terrific query, Ted. I’m unsure. Here's a few samples of what I’ve read in various locations to the Federal 210 vs Federal 210M distinctions: I do have two revolvers that once in a while misfire on the very first strike on double action with CCI primers, and equally https://remingtontaozl.total-blog.com/rumored-buzz-on-federal-primers-gm210m-57184015