Among all this people were seven hundred select men who were left-handed; every one could sling a stone at a hair's breadth and not miss.
Judges 20:16
Surrounding context
20:15 And from their cities at that time the children of Benjamin numbered twenty-six thousand men who drew the sword, besides the inhabitants of Gibeah, who numbered seven hundred select men.
20:16 Among all this people were seven hundred select men who were left-handed; every one could sling a stone at a hair's breadth and not miss.
20:17 Now besides Benjamin, the men of Israel numbered four hundred thousand men who drew the sword; all of these were men of war.