Since this is the long range forum, I'm going out on a limb and saying, when you're moving and something might present a quick shot up close, keep it turned down to the lowest magnification. And if you need to take a "long range" shot using turrets or the reticle, crank it up. As long as we're not talking Hubble telescope magnification.
And if I'm stationary and get a shot at an undisturbed animal at moderate range, I'll crank it up too. I don't hunt with many scopes over 10X though.
