I am pretty sure this is the gun range and you're supposed to shoot in the direction of the blue arrow. That big mound of earth is where the targets would be and is supposed to catch stray bullets. Something tells me that redneck fuckery was involved.
Found it on Google maps, I think I was right.
I think he made a good case for it being possible. That baseball field really isn't far away from a bullet's perspective. He mentioned his first time shooting tracers, which makes me think he has a lot of real life experience shooting FMJ bullets and seeing them ricochet. He posted videos showing ricochets, you can see them maintaining almost all of their momentum.