[DustyPorViva]

Player's have a 'blocking' box, which is roughly the shape of just the body(how you block when you touch a wall is generally the same for the player's actual blocking shape). Projectiles look for walls(which a player is considered), and if it hits an area outside the blocking area of the player it simple goes past them... There is no way to make the projectiles detect a hit outside of the blocking area of a player.