Targets/coloring for 600 yards

[FLshooter]

They have a video on YouTube on how to make a target camera out of camera transmitters that are in drones. Really doesn’t look very hard if you apply yourself. And most of the parts are sold on Amazon. If you have a regular cell phone not an Apple product the whole cost is under $100.
I belong to a gun club right now. But, I have buddies with land and when I get the situation to set up my own range again. I will definitely be building one of those cameras.