Onions

51 players* have scored between 200-299 3-pointers in an NBA season.
0 players have scored between 300-399 3-pointers in an NBA season
1 player has scored between 400-499 3-pointers in an NBA season





*This is not individual players, but individual seasons. So Ray Allen, Korver and Curry among others count multiple times in that list of 51.