Is this another way of explaining the Coriolis Effect?
What you are describing is not the Coriolis effect, but the Magnus effect. The Coriolis effect describes the apparent deflection of long-range projectiles due to the rotation of the earth. The Magnus effect is the force a projectile feels if it spins while it is traveling. If a bullet is spinning as it travels, it pulls the air around itself in the same direction as its spin. This changes the velocity of air surrounding the ball which results in different pressure on different sides of the ball. This difference in pressure causes the deflection in the bullet. This is the same principle behind a curveball thrown by a pitcher in baseball. The problem with old spherical bullets was that they came out of the barrel spinning in random directions, so their deflection was random. Guns with rifle barrels cause the bullet to spin in a direction that doesn’t cause deflection. See the wikipedia article below for more details.
