When hunting with a day scope I use a FFP MILDOT Zeroed for PBR. I use reticle graduations instead of spinning the turrets like when target shooting. After PBR I have to hold over the target to resolve the extra Projectile drop. The MILDOT affords me a ranging option to the target. It's not as accurate as modern Lazer rangefinders, but since I've been doing it since 1970 I've become a fair hand at estimating range. Not to mention I don't need to remove my eye from the scope. It's an Old system, but it still works as well as the days of the Leatherwood ART. Hope that resolves some of the confusion. Probably really Old technology, folks under 70 or those without military precision shooting training may want to use Google? YMMV.