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No adjustment of the scope will eliminate these abnormalities or optical deficiencies. You can check the parallax of any scope by sighting an object at normal shooting distance (not indoors), by moving your eye side to side (then up and down), as far as you can, keeping the sighted object within the field of view. The apparent movement of the reticle in relation the target is parallax.
Best Answer: 4x means it magnifies things 4 times 4x is a common choice, it is a good comprimise between wide field of view and good magnification. 6x is also quite common. another thing to look for is 2-7x or 3-9x or 4-12x etc these are variable scopes, you can have a 2-7x at 2x or 3x or 4x or 5x or 6x or 7x.2 means the diameter of the scope tube. Wider tubes gather more light, but this is mostly important for bigger magnifications. 4x32 is a common setup for a 22 rifle scope 3-9x40 is a common deer hunting scope.