Eye relief vs tube length

Discussion in 'Long Range Scopes and Other Optics' started by ken snyder, Mar 15, 2011.

  1. ken snyder

    ken snyder Well-Known Member

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    I am continually running into problems with popular scopes on Ruger M77 Rifles, the scope tubes are not long enough to set the scope back far enough to be a comfortable fit. ( Yah I Know thats what ya get and got on a M77). The older scopes have longer tubes and sit back quite a bit further. Are there any popular scopes that address this problem?
     
  2. streetglideok

    streetglideok Well-Known Member

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    What brand of scopes have you tried? Simmons, Tasco, or Leupold, Zeiss, etc? Leupolds generally have good eye relief, as well as some high end Nikons. Zeiss Conquest 3-9x has 4" of eye relief.
     

  3. ken snyder

    ken snyder Well-Known Member

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    Zeiss are a bit spendy. We have tried Nikon, Leupold, Bushnell. On low magnification they work fine but they are too far forward to get a good view on higher magnifications.
     
  4. streetglideok

    streetglideok Well-Known Member

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    Some scopes are known for that, some worse then others. My 4.5-14 varix III is more tempermental about eye relief at higher powers then my 3.5-10 of the same model leupold. Unless you are needing a higher power scope, look at the conquest 3-9x from Zeiss. Its not absurd priced at all. Now if you are looking at the vxII, and lower line stuff from nikon, then you will have alot harder time with eye relief. Make sure you are looking at scopes towards the $400 range or better. Worst case, for normal rifles, there are offset rings that may let you set the scope back more, however, with Rugers one of a kind mounts, you may be up the creek.
     
  5. outofayr

    outofayr Well-Known Member

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    Offset rings are the answer here; no need to change scopes. And yes, they are available for the Ruger system.

    Luck,

    Brian
     
  6. FEENIX

    FEENIX Well-Known Member

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    Went from this ...

    [​IMG]

    ... changed with Burris base and rings ...

    [​IMG]

    [​IMG]

    ... to this ...

    [​IMG]

    Scope is Burris 4.5-14x44 FFII. I have plenty of eye relief @ high magnification and still have plenty of room to move the scope back (~ 1").
     
  7. davewilson

    davewilson Well-Known Member

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    i guess i'm not understanding you, but it sure looks like you moved the scope forward, not back.
     
  8. FEENIX

    FEENIX Well-Known Member

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    The set up provides more flexibility ... here's another picture of the same rifle with older stock and different ring/base configuration ...

    [​IMG]

    As you can see, if original Ruger integral mount is used, adjustment towards the back is almost maxed out.
     
    Last edited: Mar 19, 2011
  9. ken snyder

    ken snyder Well-Known Member

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    Looks like he needed to move the scope fwd, it appears that he can also move it back -- looks like a good 1inch fix either direction to me. ( in the good old days of not so good optics it was rare to run into problems with longer tubes) but the folks that needed more relief were hosed. I would hope that someday scope mfg. would pick up on this and at least make a long tube model. but I dream a lot.
     
  10. FEENIX

    FEENIX Well-Known Member

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    Actually, I replaced them not for the need of eye relief but rather didn't want to limit myself with the Ruger rings ... didn't really care much for them.

    Have you considered a picatinny base Ken Farrell, Inc. -- Ruger M77 Long in Steel Black Matte - 20 MOA

    I'm not really sure what kind/brand of scope your looking for, there are scopes out there with long tube ... below is a Konus M30 6.5-25x44 over Leupold VX-II 3-9x40 just for comparison ...

    [​IMG]

    Good luck!

    Ed
     
  11. davewilson

    davewilson Well-Known Member

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    i understand the extra positioning possibilities the new mounts give you. all you talked about was being able to move the scope back, and the picture with the new setup shows it moved forward. it makes more sense now.
     
  12. FEENIX

    FEENIX Well-Known Member

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    On the 1st picture you can move the scope back ~ 1" and another .5" or so if you set the front ring to the rear slot.

    In short, if I needed to move back the scope, I have 1" to 1.5" of adjustment - the OP's requirement.
     
    Last edited: Mar 19, 2011
  13. Gene

    Gene Well-Known Member

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    Quote: "As you can see, if original Ruger integral mount is used, adjustment towards the back is almost maxed out."



    I don't see that. It looks to me like you have at least another 1/2" movement back until the front turret is in the way.

    With some extended rings, the front ring can be reversed to obtain additional ER.
     
  14. FEENIX

    FEENIX Well-Known Member

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    That's why I said "almost" ... lightbulb
     
    Last edited: Mar 19, 2011