I watched the show as well while working at the desk. I thought that Jerry missed one also, but when they scanned back the target was down. I've shot with and been instructed by Rob Latham, and these guys aim, fire and move on, and some of their targets are dropping three plates down the line.
Did you see the previous show on the sniper AK? My thinking is that by the time you tighten up an AK to make it sniper quality you are going to start getting the same tight tolerance issues you get with other semi-autos like the AR. Anyway, it makes for cool tv.