Magnus effect: an effect in which induced pressure differences act upon a spinning projectile deflecting its course by twisting its axis of symmetry off of its axis of flight.
In this video, Rex explains how air flowing around the spinning bullet creates high pressure zones that push on the bullet's center of pressure, causing the bullet to fly crooked through the air. This "yaw" affects the bullets aerodynamic stability which can change the ballistic coefficient as yaw changes as well as affecting its direction of travel as the nose is pointed off center. The Magnus Force is always perpendicular to the sideways vector of the wind acting on the bullet.
Crosswinds Affect Bullet Stability: The Magnus force greatly affects stability because it tries to "twist" the bullet along its flight path.
NOTES: Right Hand wind twist (clockwise)
Wind from Right - Nose shifted Downward into the axis of flight (stabilizing)
Wind from Left - Nose shifted Upward away from axis of flight (destabilizing)
The vertical deflection value tends to be small in comparison with the horizontal wind induced deflection component (10mph starts to make a difference).
NOTES: Yaw caused by Magnus Effect causes Spin Drift
In right hand twist barrels, bullets drift to the right
In left hand twist barrels, bullets drift to the left
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All the music in this video was created by TiborasaurusRex, an unsigned artist.
Song Titles: Wadi Watir, Dawn of the Day
Music and Lyrics by: TiborasaurusRex
Instrumentation and Vocals by: TiborasaurusRex
Recorded by: TiborasaurusRex
