I have seen blown-up Ballards, low walls, Stevens, Win M70s, Springfield 1903s, Krags, a Sako, all sorts & models of Mausers, as well as many others. The Trinidad instructors had a small collection of remains of that nature and occasionally gave us background stories and opinions about the cause-&-effect, and 40 years of subsequent experience has provided further examples.
The Kelver anecdote is the first time I've ever heard of a Ruger actually being damaged and I'm certainly curious about the details, too bad they're not available. I would have said, and still am of the opinion, that the Ruger No 1 and the Rem 700 are 2 of the very strongest actions ever made.
Regards, Joe
