Evenin', Jim,
I'm not forgetting the original purpose; heck, there are three Springfields, three Carbines, a Krag and a Garand in the gun room, right now, and my first-ever center-fire rifle was a DCM 1917 Enfield. Herr Mauser had a purpose and reasons for his design. I got a ton of respect for soldiers and battle rifles...
But in today's world, how many in the U.S. armed services use bolt-action rifles? How many hunters in the U.S. hunt in really rough conditions? Or for bite-you-back critters? For those who need them, controlled-feed rifles are readily available.
What charges my batteries is the degree of importance attributed to some feature, when it's not particularly necessary to somebody's primary uses. This "artificial importance" or "induced importance" leads to somebody emoting about "reliability", for instance, which then leads to ronin308's original question.
Oh, well.
I certainly appreciate your historian's knowledge of the reason for controlled feed and the claw extractor.
Best regards to all,
Art