Wind Call – Bullet Trajectory will help you determine the crosswind value acting on your bullet in any given wind condition. This is extremely valuable to hunters and sport shooters, as this value is used to determine bullet wind deflection. Simply use the app to mark the direction the wind is coming from and enter the full value of wind from that direction. Then mark the direction of your target and Wind Call – Bullet Trajectory will determine the crosswind value acting on your bullet. This value can then be used for windage holdover in riflescopes or entered into ballistics apps.