The third group with a standard deviation of 17 may be higher than the palma team wishes but may be the closest. The last group with a standard deviation equal to 22 is for palma shooter's night mares and showing the wind affect. The odds of selection are even across all three standard deviation units. The down range velocity variation or velocity variation at 1000 yards is probability greater than it started out at. First constant wind, this is the easy part.
Faster bullets drift less and slower bullets drift more.
Target 2 shows the effect of a constant 20 mph wind at 90 degrees to the bullet flight. Blowing right to left. The faster bullets drift less and are high and to the right. The slower than average bullets are a little low and to the left. Shooting 1000 yards or rim firing at 200 yards you got to know when to hold them and when to roll them sight knobs.