At risk of tellin you somethin you already know I appologize now.
Once you've made your shot or three shot group. If you have a bench setup that will let you lock your rifle down then you can adjust your scope to zero with little effort. It also helps to have a shootin buddy to do this. With whatever means you have to steady your rifle on target set it so it is on the bullseye just like your going to shoot again.
Now with the rifle locked or held in this position dial or have a buddy dial the windage toward the bullet hole or group center. do your best to keep the rifle from moving. Count the clicks in case you want to start over.
Once your satisfied that you have it centered thru the hole then dial the elevation to the hole. Again count the clicks to know where you are.
Now you are ready to fire your next group. How steady your adjustments were will determine if more adjustment is needed. If you have problems with this method it may suggest something is loose on your rig or a you may need a different shooting rest.
Either way good luck!