For this part I recommend an assitant until you get familiar with the process but its certainly not necessary, just take your time and go patiently.) Now to properly set your eye relief you need to turn the scope down too its lowest power and put the scope as far forward as it will go (that being typically the power selector ring end of the scope will hit the rear ring). Close your eyes and "mount the gun" or act as if you were going to take a shot