Originally Posted by shnorse
i know absolutly NOTHING when it comes to scopes.. we have 3 shot guns, and a 22, all with the iron sights... i have great accuracy with these, but a scope sure would be nice to have..
what do the numbers stand for and whats the differences?
THe numbers stand for the magnification of power, how many times it will magnify the object you are looking at, and what the objective size is. The objective size is how big around the tube that the light comes through is in size. The bigger the tube, the more light gets through, and the brighter the picture ( assuming glass quality to be the same.
Example: Leupold ( who is a very good scope company ) makes a VX-III 4.5 - 14 x 40 mm. This is an adjustable scope.
The 4.5 - is the minimum magnification setting. On the lowest setting, you will magnify the target 4.5 times what a person can see with a naked eye ( assuming clear conditions and good vision )
The 14 - is the Maximum magnification setting. On this setting, you will magnify the intended target by 14 times what a person can see with the naked eye.
There are several settings in between, which as their numbers indicate will be the level of magnification.
The 40mm - is the size of the objective tube. This is the main body of the scope. If you get a 40mm tube, you will need scope rings designed to hold it, so you will need 40mm scope rings to go with it.
Example: Leupold also makes a FX-I 4x28mm Fixed power riflescope. This is designed for rimfire models, like the Ruger 10-22.
The 4 - is the fixed power. No setting to change. Every time you look through the scope, you see four times what the naked eye can see.
The 28mm - is the size of the objective, the main body of the scope. You would need scope rings that would hold a 28mm body to mount this scope.
The higher the numbers, the greater the magnification, and usually the higher the cost.
Hope that helps -