A friend of mine recently cut his brow on the scope of a rifle, and now has a crescent moon scar just above his eyebrow.
I distinctly remember seeing such a thing in a movie (5-10 years ago, but movie itself may be older) where I recall such a scar being referred to as a 'Rookie Cut'; although as a Google search for the term brings no results I may be wrong about that.
From what I recall from the scene, someone is posing as a seasoned vet or experienced soldier; but it is observed by another character that they are an amateur due to fresh cut on their forehead, which comes from putting ones eye too close behind a rifle scope.
Can anyone identify what film I'm remembering, ideally before I lose my mind completely?