D defs.my
Entry 1 sense Webster, 1913

Rifling

/rīf'-lĭng/ · Ri·fling · IPA /ˈɹaɪflɪŋ/
01 n. The act or process of making the grooves in a rifled cannon or gun barrel.
  1. 1.
    The act or process of making the grooves in a rifled cannon or gun barrel.
Phrases & compounds
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.