A good, if old, read over at loose rounds.
In my work in the Army I often come across men of a rather low order of intelligence whom no amount of practice will teach to shoot, chiefly because they have never learned how to use their brains. Any man of ordinary intelligence, who is not physically handicapped, can become a good shot. To become an expert shot requires both a good body and a good brain. Most persons have the idea that eyesight is the important factor. Fair eyesight is of course essential, and may be obtained either naturally or by the aid of well-fitted glasses.
There are five essentials which must be attained in order that one may be able to shoot accurately. All instruction in rifle shooting is aimed at perfecting one’s knowledge and execution of these five essentials. These are as follows: