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5 comments

  • steveg
    I am looking for input on sightron scopes, good or bad? I'm looking at a S2 6.5-25x50 ao. This is a new brand to me. Can anybody help?
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  • Tailgunner1954
    3-9x40 Read as 3 to 9 ex, 40mm
    3-9x Magnafacation range 3 times to 9 times the size as viewed by the naked eye..
    32, 40, 50 Diameter of the objective lens in millimeters

    What to consider depends on what your using it for, what your using it on, and what conditions your using it in. Up close, fast hunting action and hard kickers tend to be better off with the lower power scopes, while target shooters (esp those that reach out long distances) p-dog hunters and soft kicking rifles tend to run scopes at the upper end of the mag range. The objective size will have a effect on the mounting height, along with it's other properties, personaly I find that to be the biggest determing factor (unless I'm having a custom stock made, that is)

    Whittemore
    Some guys like a mag full of lead, I still prefer one round to the head.
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  • Nwcid
    The fist number is the low power end of the scope, in this case 3x magnafaction
    The second number is the high power end of the scope, in this case 9x
    The last number is the objective size in mm.

    Some just have fixed power and would read like 4 x 28 is very common. Also alot of times a tube size will be listed, the most common being 1", the next 30mm, There are others but not very common.




    John
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  • He Dog
    Scopes do not "accumulate" light, they transmit light from the objective in front to the ocular that you look into. NO scope transmits 100% of the light that enters the scope. Some is reflected, some refracted and at very best high end optics with full multicoating can transmit 94-96%. The small dot of light seen in the ocular from several inches away is called the exit pupil. The diameter of the exit pupil is determined by dividing the diameter of the objective (say 42mm), but the magnification (say 6x). This example gives us an exit pupil 7mm in diameter, which is all young eyes (whose pupil can dialate to 6 or 7mm) can use. Us older guys can use 6mm at best. So, you would like the magnification to suit the use you put the rifle to, (see tailgunners post above) and you want an exit pupil at 5-7mm, which determines the diameter of the objective you want. Generally if you go for a objective larger than 40-42mm you will need taller rings to accomodate the scope. The higer the scope is the harder it is to get a good cheek weld on the stock which yeilds inconsistent bullet placement. Larger objectives may be usefull if you are hunting at night like in Europe, but are not much used here except sometimes on high magnification scopes. I tend to go for lower magnification scopes (like 1.5-6x) or fixed magnification (like 4x or 6x) as do a lot of experienced shooters that hunt mostly or exclusively large game, but variables are all the vogue, and 3x-9x is the most common, which gives you a better resale price for a quality used scope. Buy the best optics you can possible afford. In optics you get what you pay for. Good Hunting, and remember the only stupid question is the one you did not ask and you are smart enough to ask and learn.
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  • mulerider
    Hey there.... the information given above is right on. I will add....if you have a set number of dollars to spend, I would buy the highest quality fixed power (like a 4x) rather than a cheaper variable (3 to 9 zoom for instance) Not that I don't like variables....but what I mean is to get the best quality glass you can afford, and if you have more to spend then get the extras like variable power etc..most folks that hunt smart for big game (not varmits hunting mind you) leave their variable scope on the low end power setting 90% of the time...good luck to you in getting a nice scope for your rifle...

    Don't pick on my mule, and we'll get along just fine!
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