Originally Posted by
Failure2Stop
Depends on what optic or sighting device you are using.
I won't use a 100 yard/meter zero on an NF 1-4 w/ FC3G reticle, or a Leupold 1-6x Multigun, because they are both built around a 200 yard zero.
Either a 200 or 100 will work well with a shooter that knows their holds at distance, and both will fall apart if the shooter doesn't do their part.
Far more interesting than what zero one is using is how fully the user is actually zeroing the optic, and what they're doing to confirm their holds.
Further, as distance starts to increase, wind becomes the largest unknown variable, and if your reticle doesn't support holds and wind, it's an equal level of guesstimation regardless of the nuance of the zero.
To put a bow on this, if you aren't shooting at 200, you don't have a 200 zero, and you don't need one, therefore the discussion is really, "100 or 50", and I can prove that the hold differential with a high level of precision expectation between the 50 and 100 highly favors the 100 zero for everything between 20 and 120.
ETA: I do show an advantage for a 50 zero with irons.