I would question the validity of your sweeping claim about 2 shooters have the same POI - as my experience differs.
My son & I have shared a rifle, shooting FTR, on ranges at varying distances.
The one rifle, he shoots right handed, I shoot left handed on the same rifle - so we don't share the same shooting position.
Same bipod, same rear bag, different shooters.
I can shoot after him, just adjusting the shooting mat and hit the same place on the target (generally in the middle).
It saved me a couple of sighting shots.
We have differing eyesight, but the same rifle setup can & does work.
The problem with generalisations is that they are generally wrong.
Bookmarks