I agree with the second part of that sentence, but after watching the video several times, I'm not sure they're all that proficient. The robber's just on the other side of the counter, and even when he's struggling with the mother, he doesn't look to be more than 10-12 feet away.
That's another thing. That was a bad choice the daughter made, shooting at the guy while he's struggling with the mother. When I first watched it, I actually cringed when she did that.
This goes back to my comment above. I don't think the ladies are all that skilled in the use of firearms.
The one-shot stop...not a myth, but in my opinion depends on the caliber and the shooter. If one of 'em had been shooting a .45 with the right ammo, and was any kind of a good shot, they wouldn't have had to fool with locking the door...cause he'd have never got that far.
Some of y'all may remember this incident from just over a year ago from down in Georgia.
Large caliber + skilled shooter = One-Shot-Stop. It's a simple concept, a proven theory.
Georgia gun store owner shoots, kills armed robbery suspect - YouTube