I guess I don't understand what could wear a hole thru .200" of hard metal to get to the firing pin. Looking at mine, I see the front of the firing pin coming thru the bolt face, the Rear I see the firing pin stop, and on the bottom if I remove the extractor, I could see the pin thru a hole in the bottom, but the firing pin could then be slid out the rear of the bolt. IF you can cycle your bolt back by hand, I don't see how there is anything rubing on the bolt enough to wear thru the thick metal.
If you can post a picture it would help. Take a picture, use a photo program to convert to JPEG, and resize to less than 75 Kbyts. save to file, click browes at the bottom of your post, open file then click submit. I would like to see it as this is a new one on me.