if you look closely you can actually see a literal blinder over her left eye! the reason it helps is because precision shooting is all about repeatability, and both eyes open is a more repeatable position than closing one eye exactly the same way every time
if you look closely you can actually see a literal blinder over her left eye! the reason it helps is because precision shooting is all about repeatability, and both eyes open is a more repeatable position than closing one eye exactly the same way every time