I try to have most of the "sighting in" done before going to the range. I put my rifle in my "gun fix cradle", sight down the bore on a street light about 100-200 yards away, center it in the bore, adjust my crosshair to the center of the streetlight. It doesn't really matter if the light is 100 or 200 yards away since I am only operating by line of sight and not trajectory, what does matter is that a light at double distance is smaller and therefore helps me to adjust more exact.
To end up right with the scope I try to make as many adjustments as I can with the rings and bases, before I start using the scopes own adjustments. The closer I get before using my turrets, the better since I have more adjustments left later.
Here I go to the range, shoot three shots at 100yards/100m depending on the range. I never use just one shot for fine tuning, since one shot is never as exact as a group.
Then I use the turret adjustments, to end up with my crosshairs on my bullet holes. Now I shoot a five shot group, aiming dead center, and hopefully I am right on with a good grouping. If not, I adjust a little more and five new shots.
Yes it takes a few shots, but then I am more sure of my adjustments needed than with one bullet.