The Collaborative International Dictionary of English v.0.48:

Striking \Strik"ing\,
   a. & n. from Strike, v.
   [1913 Webster]

   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.
   (a) The plate against which the latch of a door lock strikes
       as the door is closed.
   (b) A part of the centering of an arch, which is driven back
       to loosen the centering in striking it.
       [1913 Webster]