Rifleman

from WordNet (r) 3.0 (2006)

rifleman
    n 1: someone skilled in the use of a rifle
    2: a soldier whose weapon is a rifle

from The Collaborative International Dictionary of English v.0.48

Rifleman \Ri"fle*man\, n.; pl. {Rifleman}. (Mil.)
   A soldier armed with a rifle.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

57 Moby Thesaurus words for "rifleman":
      Amazon, Nimrod, Zouave, air serviceman, archer, artilleryman,
      bersagliere, bowman, brave, cannon fodder, cannoneer, carabineer,
      chasseur, crack shot, dead shot, deadeye, dogface, doughfoot,
      expert rifleman, fighting man, food for powder, foot soldier,
      footslogger, fusileer, good shot, grenadier, grunt, gun, gunman,
      gunner, halberdier, hoplite, hunter, infantryman, legionary,
      light infantryman, man-at-arms, marksman, markswoman, military man,
      musketeer, navy man, paddlefoot, pikeman, rifle, serviceman,
      sharpshooter, shooter, shot, sniper, soldier, spearman,
      targetshooter, toxophilite, trapshooter, warrior, warrioress