Eye relief vs tube length

ken snyder

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Jul 26, 2010
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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?
 
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.
 
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.
 
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.
 
Offset rings are the answer here; no need to change scopes. And yes, they are available for the Ruger system.

Luck,

Brian
 
Went from this ...

P9030104.jpg


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

8eca7c0f.jpg


unnamed-1.jpg


... to this ...

P2210382.jpg


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

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

P4030318.jpg


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


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 ...

P6230745.jpg


Good luck!

Ed
 
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.
 
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.



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").


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.
 
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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.
 
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.

That's why I said "almost" ... lightbulb
 
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