If you’ve seen any of the Mauser rifles that were imported from China, you’d know how they could wear out a 97. I bought a couple of those rifles, and there wasn’t one salvageable part on them, even the sights were worn out. And I’ve seen a lot of old 97’s that would drop the hammer when you closed the slide too hard. And no, not with the trigger depressed. They were just shot out.
I can’t imagine wearing out a ‘97 that badly. Good thing the Chinese have overcome their quality control issues.... ;)