In the video the guy says he aimed about 75 yards high.....
You would have to. Gravity will not be mocked.
At 1,000 fps bullet takes 3 seconds to reach target.
Bullet begins to drop as soon as it leaves the muzzle.
Rate is 9.8 m/s2
So first second is 9.8 meters drop. About 10 yards
Yep.
This scenario is discussed every so often by (bored) shooters.
With a spotter, enough shots, and the right geography it could be done.
A video doesn’t have to show all the details :D