... "Fighting your way to your long gun" doesn't happen very often. I expect that was your point/suspicion, and you're correct in my view.
...but Doc, I'm guessing that you'd also agree that a lack of frequency doesn't negate it's tactical soundness....the scenarios are rare in which a handgun is to be preferred over a long gun (if available) and a number of those can be overcome by indepth training. Of course, JMO
