[kraigwy]

If one has to ask which way to turn the sights, I do believe Spin Drift and the Coruikus Effect should be put off for a while.

If you want it, but don't want to learn the fomula then just down load the "Shooter" program on your Ipod/Iphone/Ipad.

You plug in the numbers into the program, then highlight the range and it will give you the corrections.

Beats taking a slide rule to the field.