You guys jinxed me! I stopped by the LGS, and the owner asked to see my RMSc on the 43X, as he wanted one. I told him how well it had been doing, handed it to him, and he said “your dot is out.” I told him to stop kidding me, but sure enough, the dot was out. Worked fine yesterday. We pulled the optic, changed to a new 2032, and since I was on the way to the range, decided to verify zero first thing.
This is a walk back from 10-20 yards, so it looks like removing and reinstalling the optic did not change zero.
Attachment 49149
When I got home, I tested the battery and it showed as under ten percent, so again the battery tester proved its value by confirming I had a bad battery as opposed to a bad optic. It lasted from October, which is a little less than I would have expected.