If you had read the post ( I know, none of you do that before shooting off at the mouth ), you would see where I said I do not use the 25-yard system. I can sight in any decent rifle at any shootable range with 3 shots:
First to see where it is hitting, like at 100 meters. Second to move the windage and elevation to center Third to check it at a farther range.
The question was about how to sight in at 25 yards. You have to be able to estimate range within 10 yards at 300 and be able to hold 1 MOA without a bench to do it in 3 shots.
If your parents ever let you buy a real rifle, start with the 25-yard method.
