Rest rifle on sandbags and look down the bore at a big ass piece of cardboard.
Look through the scope and adjust it as necessary.
Look back down the bore to see that it didn't move.
Shoot the rifle and fine tune.
A site is (1) a place where something is located, or (2) a website.While site has few definitions, sight has many, including (1) the ability to see; (2) one's field of vision; (3) something seen; (4) a place or thing worth seeing; and (5) the part of a firearm used to aim. It appears in the common phrasesset one's sights, out of sight, sight unseen, and sight for sore eyes.