Yea, At this point It looks like the transition to 66F is late 21 or early 22. It looks like the letter code is likely a revision. Now I’m wondering what might have changed between A to B and B to F
I thought the same thing. I double checked. I know, it seems backwards! 😎If I didn't know the xMacro wasn't available then, I would have thought that you got those dates backwards.
The S/N and date don't make sense. My P365X is S/N 66B924542 and was made November 12, 2021. I have to believe Sig made more than 1,356 P365's (all variants) between 10/21 and 07/22. Strange.