Read this link closely and if you still have questions come back and ask for help:
http://elkhunter2.tripod.com/sight_in.html
When you take the caps off your scope turrets you will see an arrow on each of the dials to go up or down and to go right or left. Wherever your first group hits using a good, solid rest like the guy initially talks about you will then need to turn those turrets to go in the direction where you want the next bullets to go.