The field target sports started out to emulate hunting. Rats, rabbits squirrels, and wood pigeon, which are found at differing heights. Plus the practical of shooting over long grass, hedges, gateposts and around fallen logs. For practical hunting at close range around the farmyard, fields and woods, then there aren't so many opportunities to go prone. Its multi position: prone, sitting, and standing.

As the sport developed the guns became more and more "targetised" and preferred position became sitting. Sitting allows to get above the long grass and take targets that are placed high off the ground. Practice the position well enough and its accurate enough. Its not more stable than a properly sorted prone system, but prone can't do all the targets.

Experience helps, but heart rate control will also matter. The fitter you are and better able to control heart rate the more accurate. If a benchrest shooter didn't have to touch the rifle they wouldn't as human twitching isn't any help.
Contorting a body to fit a rifle is no good at all, which is why rifles have so much adjustment. They no longer are a sporting, carry around the field, rifle. Nor do they have a whopping spring in them to tame.
Scope super high does the getting to fit the body and sweet spot trajectory. High mag with side wheel the rangefinding. FT makes the range estimate more a human input skill.
Field target sports have rules and whatever the rules shooters will find equipment to give them advantage. No rules then everyone would carry around benches, rangefinders, and wind meters.


I have a bad back, absolutely shot out, and find prone and sitting difficult. Can't do competitive target shooting now. In the field I use Quod Sticks, or shoot from a sorted platform. Its play the game any way you can.