H-37, even says extreme-range in the description!
[h=2]H37[/h]Ultra Long Range
The H37™ reticle is highly recommended for extreme-range shooters. Its central targeting grid is 4 mills higher in the field of view, allowing more grid to be used at increased magnification. Thus, the H37 can accommodate longer-range cartridges without requiring sloped bases. A rheostat controls illumination for twilight conditions.