I'll jump in with my opinion, for what it's worth. The stability of a bullet is slightly affected by the wind. And, it depends on the direction it is coming from. A side wind will have less effect than a head or quartering wind will. The twist does have an effect on stability, as noted before, you can either understabilize or overstabilize, although I think it is nearly impossible to overstabilize at ranges over 300 yards. At shorter distances, overstabilization can be a problem. J Louis shoots 200 yards, his opinion and observations are valid for that range. I shoot at longer range, and have no place to shoot 200, so what I observe is at ranges to 1000 yards, or at 100 yards only. My long range observations are after the bullet has "gone to sleep", and so overstabilization is not a factor. Understabilization produces a yaw in the bullet itself, where the bullet wobbles, or tips, about a center of rotation. Overstabilization produces the large spiral path downrange, as J. Louis noted the bullets do not follow a straight path, rather a long lazy spiral. The long spiral of overstabilization is not subject to wind induced instability, the wobble yaw of understabilization or misbalanced bullet is. For an understabilized bullet in a quartering or headwind, the bullet yaws and presents more surface area, so the wind slows it more, drifts it more, and if gusting, can destabilize it more. This is because the destabilizing wind force has more apparent surface area to act on. The faster the twist, the more aerodynamic lift on the bullet. That effect is the same as air on an airplane wing. The faster the airspeed, the more the lift. Incresing bullet spin increases the apparent airspeed over the surface. My opinion is that the gyroscopic stabilization of the bullet by twist helps the bullet be more stable in wind. More is better. Marginally twist guns don't shoot well at long range in the wind. Overly fast twists shoot better in high wind. dave
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