What is "striking distance"

Striking \Strik"ing\, a. & n. from Strike, v. Striking distance, the distance through which an object can be reached by striking; the distance at which a force is effective when directed to a particular object. Striking plate.

1. The plate against which the latch of a door lock strikes as the door is closed.

2. A part of the centering of an arch, which is driven back to loosen the centering in striking it.

n. 1 (context military English) A distance at which a soldier, military force, vessel, etc. is sufficiently near to be able to attack an opponent. 2 (context figuratively by extension English) A distance at which one is sufficiently near to an objective to have a opportunity to achieve it.

Striking Distance is a 1993 American action thriller film starring Bruce Willis as a Pittsburgh Police homicide detective Thomas Hardy. The film co-stars Sarah Jessica Parker, Dennis Farina, and Tom Sizemore. It was directed by Rowdy Herrington and written by Herrington and Marty Kaplan. The film was shot on location throughout Pittsburgh; its early title was Three Rivers.