[Arlis]

Gotcha - thanks. Shoulda thought of that........

So a scope set for 1 mile away would be way off for 100 yds........100 yd. target might not even be in the field of view........

[grobdriver]

Depends on the quality of the scope which drives the amount of travel in the turret adjustments.

For extreme long range you would zero the scope at 100 yards and "slip the rings" on the turret so you were at the bottom of the adjustable range.

Then your adjustment for maximum range is dependent on the number of MILs or MOAs the turret allows to adjust.

Beyond that you'd use holdover based on the reticle markings.