Re: Wind Drift
I agree that weight has no direct bearing on path or wind drift, however, as I mentioned above, its not time of flight that determines wind drift, its the differance between the time of flight, and the time of flight that would have occured if the bullet had continued at muzzle velocity all the way to the target.
Weight only affects the flight of the projectile by its relationship to the ballistic coefficent. BC is sectional density multiplied by form factor. Sectional density is determined by weight and caliber. If the form (shape of the bullet) is held constant, increases in weight raises the sectional density, which reises the BC. Again, only BC and velocity affect wind drift and path. Weight, while a factor in both of these values, is not a direct contribuitor.
Again, Higher BC bullets in the same cartridge, which usually weigh more, will ahve a longer time of flight than lighter bullets, but still have less wind drift.
To put it yet another way, the amount of wind deflection a bullet experences in flight is not directly proportional to the amount of time it is in the air, but rather the differance mentioned above. It is for this reason that vind velocity near the muzzle will result in more deflection than the same wind at a longer range.