Dials labeled North and West?
Never seen that one. I guess it would depend on what way you were facing as to how you would turn it!
Mine is pretty plainly labeled.
Here's a pic-
As you can see, the rear adjuster(On the left in this pic) moves the shot up and down.
The arrow says that turning the screw clockwise will move the bullet impact point DOWN.
The front adjuster (The one to the right in this pic) is for adjusting left and right.
The arrow (See it right there by the screw?) says that moving this screw clockwise will move the bullet's impact point to the RIGHT.
I use a nickel or a dime to turn these screws. It fits real nice and I usually have one in my pocket.
The screw has a little gizmo made into it so it will "Click" as you turn it, and these "Clicks" will hold it from turning so it doesn't move when the gun kicks.
I believe two "clicks" will move the point of impact one inch at 100 yards, and one half inch at 50 yards.
One full turn of the screw (Twenty "Clicks") should be ten inches at 100 yards, five inches at 50 yards, and 2 1/2 inches at 25 yards.
If the bullet is hitting the top left of your target, you are going to want to "Tighten" both screws. (Don't screw them down tight, but turn them in the "tighten" direction!)
Count the clicks to determine how far the point of impact moves.
Yours may not be labeled like this, but I bet it works exactly the same.
Move the adjusters one at a time, and fire a few shots to verify where the bullet went.
Shoot, move the screws, shoot, move them again, bingo! You're shooting bull's eyes!
It's not hard, you can do it!