Hello Gents.
I need some repair thoughts on a issue with a DWM commercial.
A gun I very rarely shoot,but I would like to keep it safe to do so.

Took to range and observed the spent shells had primer deformation. Upon inspection,I noticed on the breech block face,the area around the firing pin hole is beveled? Collapsed? Worn? Metal fatigue?

Gun is in excellent shape. Non fluted firing pin in good shape.Functions great. Super accurate.(as all the 30 cal guns seem to be)

There was a thread from 2011 with a similar issue,but the OP never posted the outcome. My issue is a little different as there is very little raised area around the firing pin hole caused by dry firing.
Here are some pics. The first is a gun portrait I did. I like period accessories!

Thanks for any advice and help.
Bob