That’s an incredible problem, Ted. I’m not sure. Here's a few examples of what I’ve listened to in different places within the Federal 210 vs Federal 210M discrepancies: I do have two revolvers that once in a while misfire on the primary strike on double action with CCI primers, and https://winchester200primers34578.bloggip.com/31875089/the-definitive-guide-to-federal-large-primers-for-sale