whatever happened to zero at 100m and aim a touch high if it's a longer shot...!
the main problem is not knowing a precise value of range and by how much you are aiming high.
Most people have terrible distance judgement and even worse extrapolation of size to distance.
who can acurately call a 2-3" object measurement at 200 or heaven forbid 300yds?
Combine that with heat of the moment, buck fever, pressure, nerves, second guessing accuracy, poor field position etc etc
With a standard duplex or No.4 reticule covering a large area at 100+ yds and most people falling into the habit of overcompensating the number of spine shot animals increases. seen it, done it.
Even after 30 years I can still make mistakes
I shot a roe at around 185-190yds, It was a big doe, looked closer that it was, I was thinking 150-160 tops
Now my .222 roe round is "zeroed" high as my other fox load POI is 1.5" lower
So I have one load that is 2" high and one that is 0.5" high at 100yds, both pretty much bang on at 200yds
I aimed slightly higher for a mid-high shoulder to clear some grass and drop it in its tracks (as it turns out slightly more than I thought)
8x50 scope with duplex ret.
Shot did exactly what I wanted, doe dropped on spot, but the POI was 2-3" higher than I would have hoped purely on misjudged range, misjudged holdover
Bullet just grazed the under side of the inner spine. I wasn't happy with that despite the clean kill and was less impressed by the misjudged distance when I paced it out
easy to see how someone shooting across a glen, uphill angle at 170yds with a .270 can misjudge actual distance, could aim high and actually hit the spine or miss
with a MPBR most people know that 200yds is a long way and for some further than they are comfortable taking a field shot
sticking to the point and shoot MPBR and limiting range to less than true zero you will increase accuracy by removing the thought process