I am not sure this would be the case. The long range shooting fraternity is quite small. Given all of the farm, crown and forest lands not too far from any of the towns in the OK valley I would think many guys only wanting to shoot a few hundred yards and FOR FREE only the true hard cores would be Mikes clientele.
I may be wrong, I guess I will see later this summer when I head out there again.
Pretty much correct. Vernon F&GC Range members can shoot to 400yds as well. Oceola (Winfield) to 300.