Do those guys have a clue as to where their rockets will land?
Well, assuming 20 miles up, if it's a good vertical launch and minimal wind, I'd imagine touching down within 5 miles from the launch site wouldn't be an unreasonable expectation. Some of those camera views are with wide angle lenses so it's not as dramatic as it might seem at face value, but that doesn't detract from it very much!
I did rockets as a kid and am actually looking into doing it some more here in Ecuador. But there is no model rocketry hobby here as far as I know, though fireworks are easy to find. We'd need to make our own rocket fuel and rockets so this post is pretty cool to find. My step-son here has never done this so that's the reason for me to think about getting back into it. Thanks.
Yes, thanks. "as possible" are the operative words when you start baking the rocket fuel into it's final pasty form. Might do that in a toaster oven connected to a long extension cord, outside.