So shooting my Saturday morning air gun league I've noticed after mounting my rifle, when I drop my head to the stock my sight aperture is at least already partially centered on the bull. So my thought is what happens if I don't aim and just pull the trigger. Here are the results. Rifle shoulder mounted, eyes closed, head lowered and trigger pulled when cheek touched the stock.
Circles represent what front aperture would show.
Circles represent what front aperture would show.