I'd be hosed in open country without my rangefinder, or as Jordan keeps pushing me to try, a (preferably for ranging) FFP scope w/appropriate reticle.
I was consistently badly misjudging distances by eyeball up on my high desert mulie hunt this fall. Badly.
I'm pushing you to an FFP scope for other reasons, though...
With modern RF's, using a reticle to determine distance is nothing more than a seldom-used, last resort.
