I use the Holland reticle in most of my Mark 4's, the drops are in 1.5 MOA (1.5moa - 30moa)and the turrets are 1/4 MOA. Easy to use and dial for precise settings/yardage.
I do have three mark 4's in the mildot reticle and a quick and easy way to use them with the 1/4moa turrets is to use the math of a mildot= 3.5" ( close enough for minute of coyote )>
I have a drop chart made with the yardages (+/-)for each dot , 3.5, 7, 10.5,14(")once ranged I can then add to the elevation by tuning the turrets for both windage an deleveation.
the drop charts are sealed in plastic and attached to each gun.
hshunter