[Theohazard]

First, it's a lot easier to use any kind of rifle sights if you're shooting from the side of your dominant eye. Most people's dominant eye is on the same side as their dominant hand, but not always.

So if you're right eye dominant, the rifle should be in your right shoulder, your right cheek should be firmly against the stock (cheek weld), and your right eye should be looking through the scope.

If you still can't see through the scope at this point, first make sure your cheek weld is putting your eye at the correct height. If not, the best way to do this is either adding some sort of pads or risers to the stock, or changing the height of your scope rings. Raising or lowering your head from a comfortable cheek weld in order to see through the scope will usually cause you to be less accurate; the idea of a good cheek weld is that your eye will be at the exact same hight every time you shoulder the rifle and it won't move.

After you've made sure your stock and/or scope is at the right height, next check for eye relief; if the scope is too close or too far away from your eye you should be able to move the scope backwards or forwards within the scope rings to get the proper distance from your eye, but you might need to get a new mount for the scope.

Basically, the idea is to get a good cheek weld to the stock, and then adjust the scope to your eye; this will help you look through the scope the same way every time. If you move your eye in an unnatural position to see through the scope, you're probably going to be less accurate.