You can make your own and you don't really need very long distance to do it.
Accuracy is on you to do everything right so the bullet goes where you expect it.
Precision is what you will be testing.
First thing you need to do is establish a 100 yard zero for the rifle and get yourself to the point where you can repeatedly call your shots and know where the bullet is going to go based on sight picture at the time the trigger breaks. That has taken me a couple of years and a couple of thousand rounds and I'm still not very good at it.
Now, if you want to judge scope tracking, all you need is some graph paper and a small dot for an aiming point. Keep to the same aimpoint and let the scope adjustments move the bullet impact around on the paper. Discount any shots where you called a bad shot.
You can then just measure impact deviation from point of aim based on the adjustment of the scope.