Roskoe

I, too,thought for years that wind drift would be same as well as trajectory and time of flight. When I had some field experience about five years ago that put the theory in doubt, I talked to the folks at Sierra ballistics. The example they gave was the .50 BMG vs. the .300 Wby loaded with heavy VLD bullets. Trajectory and time of flight is very comparable - long range wind drift for the .50 BMG is about half. My Exbal program, however, shows the same wind drift for any bullet weight at any distance - as long as the muzzle velocity and B.C. doesn't change. Go figure . . . .