Ri"fling (?), n. (a)
The act or process of making the grooves in a rifled cannon or
gun barrel. (b) The system of grooves in a
rifled gun barrel or cannon.
Shunt rifling, rifling for cannon, in which
one side of the groove is made deeper than the other, to facilitate
loading with shot having projections which enter by the deeper part of
the grooves.