Ballistic calculators speak in Mils or MOA. That's the same thing the "custom turret makers" are using and they're relabeling the turret. So I checked zero and shot every plate on the range prior to going Mule deer hunting. And here is the DOPE I wrote down for a density altitude of 1700'. Once I got to Sanderson, TX I checked my "Shooter" app and it told me the DA was 2500' and that I should be .1 Mil less correction from 600 yards and beyond. Here's the data I wrote down in the spiral that lives in the stock pack on the rifle.
I came home and have been answering PMs and sae "custom turrets" again. So with a label maker, a razor blade, a block of wood, and some tweezers I made my own custom turrets. This is an old competitive shooter trick.