1) I have blown the bolt face of the same CZ527 twice with 30 carbine case heads.
2) I blown the extractor out of a 1903 Turkish Mauser with a Berdan 7.62x51 case head blowing off.
3) I have widened the bolt behind the lugs and narrowed the opening in a C ring in a VZ24 with a 7mmRM case head having the primer fall out.
Other that than, Mausers are tough.
I did buy a 94, 96, and 38 Swede for destructive test because Ackley did not do it, but I have not done any testing yet.
The word 'forum" does not mean "not criticizing books."
"Ad hominem fallacy" is not the same as point by point criticism of books. If you bought the book, and believe it all, it may FEEL like an ad hominem attack, but you might strive to accept other points of view may exist.
Are we a nation of competing ideas, or a nation of forced conformity of thought?