Re: scopes that use ballistic type recticle?
For me, I go with IanM recommendations and dial up elevation. If there is not enough time to turn a dial, there is not enough time to shoot at the game.
I hunt LR alone most of the time and this is how I set up. Find a place, get comfy with rifle and spotting scope, glass till find appropriate game. Range, dial up, watch conditions, put a bullet through the ribs, get out the knife.
It is not a hurried sport. Too much can go wrong if you can't watch the conditions or get a proper rest. So the time it takes to dial in the elevation you need is minor.
I have scopes with mil-dots and use them to adjust my shots. I don't use them to range as they can be too inaccurate at longer ranges, plus it reduces the flexibility of the scopes and its magnification.
I like the idea of a MOA reticle. Much more intuitive then the mil-dot. The only problem is that under 2MOA spacing, the dots are going to be very close together and hard to see. Had a scope that had something similar and trying to count all those little dots was a real pain.
For most ranges inside 1000yds and flat magnums, the 2MOA spacings will be plenty. I think this will be the replacement for the mildot. Whoever thought up that system was probably an engineer, not a shooter.
Fractions, any math, calculators are simply not items well suited to under stress shooting.
As to the Ballistic type reticles, they work if your load fits. Otherwise, they are more of a liability then aid. Most are spaced 100yds apart. At ranges beyond 500yds, the gap between hash marks is going to be pretty large so you will be guesstimating on a verticle reticle against the side of an animal. No thanks...