Sorry to be a party pooper, but if you send enough "lead" down range, you are bound to get a hit eventually.
Not exactly. There was some brain work involved putting togther that rifle system. Most likely.....
They researched what grain bullet and therefore what BC would give them the best down range results. Then they had to figure out what twist, what powder, and how fast they could push it in their environmental conditions. The bullet had to have enough weight and BC to fly predictably trans sonic (below the speed of sound). Which I would assume they were doing in central Texas. Had they gone to Utah or Nevada this project would have been easier because the DA would be so high and they would have gained hundreds of yards of supersonic flight. They needed to know how long the barrel needed to be to get complete burn of the powder.
Notice the scope base. That was custom made so that the shooter had enough travel left in the scope to dial that far. That is why they mentioned 13' high at 100 yards. That is with the erector bottomed out the POI is 13' above POA. Which translated to 43.3 Mils of travel available.
The scope. They picked a good one, there are others that would have done the job of course. 25X is awesome even to a mile, I've done it. You have a fairly small target but it is more than do-able. Twice that distance and that plate probably looked tiny in the scope.
The driving of the rifle is the easy part. There are plenty of people that could have made perfect shots.
I never heard them adjust elevation, so their predicted trajectory was very good. Their misses were wind, which is the vast majority of the time, the reason anyone misses at long range. That bullet may have flown through more than four different wind speeds and directions in its' way to the target, that is very tough to correct for for anyone!
They didn't edit the video to make everyone think they jumped out there and connected cold bore because 99% of the long range shooting community would have pulled the