R

Rankling Arrow:
An arrow with a detachable head which remains in the wound when the arrow is removed.

Recurve bow:
A bow where the limbs bend away from the archer when held in the shooting position.

Release:
The act of letting go of the string to launch the arrow.

Release aid:
A mechanical device that allows smoother release of the arrow.

Riser:
The bow's handle.

Robin Hood:
The feat of driving the tip of an arrow into the end of another arrow that's already in the target. Named, of course, for Robin Hood's legendary accomplishment.

Round:
A certain number of arrows, shot from established distances, in competition. A round is made up of ends, as a cricket match is made up of innings.