First shot ZERO
Hou Tex, welcome fellow Texican I presume from yore' handle!!
On the one shot Zero.
Bag your rifle in, GOOD........
Fire one shot, then without MOVING the rifle, look through the scope, and see where you hit.
Next, again, WITHOUT moving your rifle........
Turn the elevation, and windage knobs, screws,and set them on the BULLET hole.( crosshairs).
Remember, your rifle is still centered on the bullseye, or center of target.......a 1" stick on works very well.
Now, IF you have NOT moved the rifle the next shot will be on the aiming point,(i.e.) the dot, aiming point.
IF you move the rifle.......STOP, and start all over again....
You need to bag it, were it will NOT move.
This simple step, will save you at least 5-20 rounds.......
How many times have you seen ( OR done it), someone come to Zero, and shoot a whole box, and maybe still NOT be on???
This will save you time, and $$$.
Hope this helps............(