Who said anything about "continually chambering bullets"? I don't "continually" chamber rounds. I was checking for bullet setback because I recently returned from a long road trip in which I carried during that road trip (FL and AZ permit holder), so I was just checking to make sure the rounds were still okay and that's when I noticed the dents. Plus whenever I go to the farm, I'll carry because there are lots of coyotes in the area, and when your pet dog is missing bone in her leg from an accident and has trouble walking, she becomes targeted as an easy meal.
Besides, anyone with a brain should check for setback if they ever chamber rounds. While rare, setback can still occur from very few or even one single chambering.