From Longman Dictionary of Contemporary Englishshootershoot‧er /ˈʃuːtə $ -ər/ noun [countable] 1 someone who shoots a gun2 informalPMW a gun3 American English a basketball player who is good at throwing the ball through the basket → peashooter, six-shooter, troubleshooter
Examples from the Corpus
shooter• I tell him it's another shooter, and he gives so little reaction I think he believes it.• Goal shooter Jane Shipley excelled in the windy conditions.• Buffalo hunters usually worked in parties of four, with one shooter, two skinners, and one hide stretcher and cook.• Veal is a streaky shooter who will need to develop more skills off the dribble and possibly convert to the point.• Everybody wanted to be the shooter.• Is the state of mind of the shooter relevant? 