Those pits won't cause any problems....

by JD, Western Washington, Monday, April 25, 2016, 14:55 (3073 days ago) @ Cherokee

I've seen quite a few rifles with pitted bolt faces, and they have never caused a problem. My Remington 700 Varmint in 223 has a pitted bolt face similar to this one thanks to a batch of bad Federal primers (Which Federal replaced...) and it's never caused any sort of problem and is still one of the most accurate rifles I own.

I once had an acquaintance who considered working up a load to be keep adding powder until the primers fell out then back off a grain or two.... Some of his bolt faces were REALLY badly pitted, but they functioned without a hitch.....