That’s a fantastic issue, Ted. I’m undecided. Here is a couple examples of what I’ve heard in several locations about the Federal 210 vs Federal 210M variations: Incorporate to quotation Only demonstrate this person #3 · Dec seven, 2014 fx1974, I've analyzed many various brand names of primers in rifles https://large-rifle-primers-winch79012.isblog.net/rumored-buzz-on-federal-benchrest-primers-49135751