Basics of a scope & How to adjust

Elevation Adj dial
This adjusts the up & down (Bulletdrop)

Windage Adj. dial
This adjusts for Left & Right

Eye piece/Focus ring
Some scopes have an adjustment that changes the users view using the focus
ring. This allows the user to view an object (ex: 3-9x) the size it would
normally appear with the naked eye. by adjusting the magnification settings
can cause parallax error. With rifle scopes, parallax error is when the aim
on a scope changes if the position of the shooter's eye changes. The rifle
can remain perfectly still, but by changing your position it will look like
your aim is off target.


Objective lens

The objective lens is on the end of the scope closest to the rifle's barel.
It is to transmit light back to the ocular lens, which is the lens closest
to your eye.

Dovetail mount
The mounting system for rifles with Dovetail rails.



TERMS:

The numerical values that can be found on a scope are as follows:
a scope using a value such as 4x32 (4x zoom) 32mm recticle
a scope using a value such as 3-9x40 (3-9x zoom) 40mm recticle

then after the value, sometimes another set of letters follows such as:

IR - Illuminated recticle
AO -




UNDER CONSTRUCTION!!!!!