AccurateShooter has an excellent post on the effects of canted scope reticles (when the cross-hairs are not aligned with the scope).

There was widespread agreement that too many scopes are leaving the factory with canted reticles, i.e. cross-hairs that are not plumb with the turrets. In fact, to my surprise, most of the top shooters I polled said, yes they have, at least once, purchased a $700+ scope from a major manufacturer that arrived with a canted reticle. The amount of cant ranged from an estimated one to three degrees.
More here.
This 25 minute video shows the operations and ceremonies of the Detroit Police Department. It is in the classic 1950’s style of cinematography. Worth a watch if law enforcement history interests you.

“He learned to use all types of firearms and spent many hours on target practice. Marksmenship might someday mean saving his own life and the lives of other people.”
Watch it here.
From another age (1943):

It encourages people to take up target shooting.
An interesting article from B.B.

The kind of glasses I’m talking about today are not for eye protection, though they do that as well. Their primary purpose is to help you see the front sight and target when shooting a target gun. Glasses are used by both rifle and pistol competitors, and even by archers, but since I know pistol glasses much better, they are what I will describe today.
More here.