Re: The lower the prone position the better
I like a low sling supported position, it helps decrease wobble. Yet, too low a position, one where the head is no longer erect and vertical, without discomfort, will cause perspective of aim problems. With irons or scope, perspective of aim inconsistency leads to vertical dispersion. In addition, resting the full weight of the head on the stock is not possible since, to get any perspective of aim, eyeball lift is inevitable. This causes recoil resistance to be inconsistent resulting in angle of departure error, which increases with distance.