WTB: NF 5.5-22X56 NPR1 Scope

Discussion in 'Optics For Sale' started by SHRTSHTR, Jan 5, 2009.

  1. SHRTSHTR

    SHRTSHTR Well-Known Member

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    Looking to purchase NF 5.5-22X56 NPR1 scope in near new condition or best deal on a new one. Thanks for looking.
     
  2. 7STDUBBERU

    7STDUBBERU Well-Known Member

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    Thee is one right now over on AR15.com for $1400
     

  3. CS T

    CS T Official LRH Sponsor

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    We have the 5.5-22x50mm w/ the NPR1. I'm not a big fan of the 56mm.

    Mike @ CSGW
     
  4. SHRTSHTR

    SHRTSHTR Well-Known Member

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    I will check it out, Thanks!
     
  5. SHRTSHTR

    SHRTSHTR Well-Known Member

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    Hmmm Why?
     
  6. SHRTSHTR

    SHRTSHTR Well-Known Member

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    Do you have a link? I could not find it on AR15.
     
  7. Broz

    Broz Well-Known Member

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  8. 7STDUBBERU

    7STDUBBERU Well-Known Member

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    Can not find it now either. Maybe I screwed it up with the one posted above...
     
  9. nddodd

    nddodd Well-Known Member

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    I have a 5.5-22x56 with a np-r1 ret. and would take 1450 shipped it is three months old and is on my 6.5-284 right now can email pics
     
  10. nddodd

    nddodd Well-Known Member

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    Finally figured out how to post pics here are a few
    [​IMG]
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    [​IMG]
     
  11. SHRTSHTR

    SHRTSHTR Well-Known Member

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    PM Sent
     
  12. CS T

    CS T Official LRH Sponsor

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    There is not a big advantage going to the 56mm.

    The average size of a human’s eye pupil at night is 7 mm and in daylight it is about 4mm on average. If the optic give you a 7mm of exit pupil and you are using it for day use more than half the light will not reach the retina. I have also noticed if you are getting too much light and you look away you see light spots were ever you look and the targets look washedout. On a lot of my scopes I use a light reducer so I do not get the light spots and the washout is not there.

    Size of bell divided by magnification = exitpupil. Hare are some examples.
    56/22x=2.54mm
    56/5.5x=10.18mm
    50/22x=2.27mm
    50/5.5x=9.09mm
    The sweet spots for the 56 and the 50mm at Night and Day use.
    50/7.14x = 7mm night use and for day use 50/12.5x = 4mm
    56/8x = 7mm night use and for day use 56/14x = 4mm
    You are really not getting much advantage over the 50mm. I feel there is a bigger disadvantage and that is you have to go with tall rings 1.00” at the low to 1.25” were the 50mm you can do 0.885”.

    Mike @ CSGW
     
  13. SHRTSHTR

    SHRTSHTR Well-Known Member

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    Thanks for the info CS. Very informative read.

    I just bought a NF from Nddodd. I am looking for another NF and will look into the 50mm.