Start at 25 Yards 
There is nothing particularly beneficial about making a fool of yourself, right?
That’s why, even if you are quite stubborn or hardheaded, we recommend taking a few shots at 25 yards when sighting in a new scope.
This will make your adjustments far more obvious.
Once you’re hitting at 25 yards, it’s time to go out further. Shoot for 2-inches high at 100 yards. This should be relatively dead-on at 200.
Again, missing the paper plate completely is simply a waste of time and ammo. Neither one is cheap.