Chamber looks like its threaded-new PSA upper-Fail****

So I received a new PSA upper from a buddy as a gift. Fired about 65 -75 rounds. Noticed hard to extract unfired cartridges when unloading. Had to bounce it off stock. Looked at case(s) and noticed marks on cartridge that made me clean and inspect chamber (hard chrome chamber and bore).

I noticed that the chamber looks as if its threaded-litterly. Tool marks in a circular fashion.

Is this normal? Can it be fixed?

Thank you

Forgot to ad this happened with 77 black hills match and 55 grain hornady z max.

Why don’t you try and post a pic so we can see what you are talking about?

Please contact the manufacturer as per the site rules and talk to them first.