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  #1  
Old 08-23-2004, 08:37 AM
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Question 1 inch VS 30mm Scope Tube


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I was at the shooting range and I asked one of the sharp shooters some advice on buying a scope. I asked whether I should consider a 40 or 50 objective lens. He told me to go with 40 objective since regardless both 40 and 50 objective have to squeeze the light thru a inch tube. He told me if light were an issue, I should go with a 30mm tube since it is a tad bigger then the inch tube and soaks in more light better then inch tubes.

Is there grounds of truth to this claim? Do you guys have any facts or experience into the tube size?
I'm considering a Leupold European 30mm Scope or a VX-II or VX-III 1 inch.

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  #2  
Old 08-23-2004, 09:15 AM
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I haven't looked through any of the new Leupold 30mm scopes, but did have a Swarovski Habicht 2,2-9x with a 30mm tube several years ago. It was brighter than my Leupold 2.5-8x 1" tube in low light conditions. Not enough that I felt it overcame the additional weight or bulk of the scope, though. I can't remember exactly what it weighed, but it wasn't fun toting around the mountains. If you are a stand hunter with most shots coming right at dusk or the break of day, it might be worth considering. However, depending on what legal shooting times are in your area, it may run you afoul of the regs. A lot of states say something like 1/2 hour after official sunset or something similar. I would think the 1" scopes could handle that.

The 30mm scopes will be considerably heavier and more bulky. All of my rifles now wear 1" scopes, except one and it was on the rifle when I got it. It's a 1-4x Kahles.
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  #3  
Old 08-23-2004, 09:47 AM
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". However, depending on what legal shooting times are in your area, it may run you afoul of the regs. A lot of states say something like 1/2 hour after official sunset or something similar. I would think the 1" scopes could handle that."
Alyeska's absolutely right about that. If you hunt where there are limits to how early and how late, a 1" tube scope will handle anything you need.
Now, as to 1" vs. 30mm.........
The size of the external tube is only one factor. There is a second tube inside a scope- that's the tube that holds the reticle. The adjustment knobs on a scope touch that second, internal tube, and move the internal tube when you make adjustments.
Sooooo......it's really the internal tube that is the limiting factor in how much light the scope body (not factoring the objective lens) can handle. If the internal tube is larger in a 30mm scope than in a 1" scope, theoretically the 30mm could handle more light. If the scope maker uses the same size internal tube, there's no difference whatsoever in the scope body's ability to utilize light.
Again, if the internal tube is the same size in a 30mm scope over a 1" scope, what you gain by going to 30mm is more adjustment range- you might be able, for example, to click in 100 clicks of elevation, rather than the 75 or 80 clicks you'd get with a 1" tube scope.
BTW, the difference between a 30mm and a 1" tube in size is only 4.6 mm....a 1" tube measured 25.4 mm.
Another factor- a big one!- is general scope quality. Good design, good construction, good lenses, good coatings, all add up a great deal.
A Vari-X 111 (1") should work fine 1/2 hour before sunrise or after sunset. I can tell you thru personal experience that a Zeiss Conquest 1" tube 3-9x40mm will absolutely work under those conditions, and more. Come to think of it, so does a Burris Signature 2-8, a Leupold 1.5-4.5, a Pentax 0-4x, and lots of other quality scopes.

Last edited by Jack; 08-23-2004 at 02:27 PM.
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  #4  
Old 08-24-2004, 04:06 PM
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On a one-inch tube scope you have a one to three ratio from the lowest to the highest power in a variable scope. On a thirty millimeter scope you have a one to four ratio. Is it worth the extra weight? Only you would know.
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  #5  
Old 09-05-2004, 08:31 AM
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I just checked out Leupold Scopes and their "long range" scopes differ mainly by the use of a 30mm tube. I guess there is a visible difference for them to cosider the tube size for their long rage scopes. Yes. they do weight a bit more. about 2 more oz.

Anyone used Leupold Boone and Crocket reticle or their Varmint Reticle? I like the Varmint Reticle since the hairs are a bit thinner but I was wondering if it was still effective on actual deer and hog size game. I don't tend to use it for actual varming shooting but was hoping it was good for bigger games or are the hairs to thin?

Last edited by FNFALmeister; 09-05-2004 at 09:02 AM.
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  #6  
Old 09-05-2004, 09:06 AM
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The extra adjustment range that a 30mm scope gives you can come into play- very helpfully- at extremely long range.
If your practice is to set the scope at a 100 yard zero and then 'click up' to longer range shots, as some varminters do, when the range gets beyond 7-800 yards, the extra adjustment range a 30mm scope gives you can be very useful. I suspect that's why Leupold bills the 30mm's as 'long range'
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  #7  
Old 09-05-2004, 10:24 AM
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Sound advice. But does anyone know If the Varmint reticle would still be ideal for hog and deer hunting or is it too fine? I'm on the verge of ordering one or the other. Please help me.

Last edited by FNFALmeister; 09-05-2004 at 01:39 PM.
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  #8  
Old 09-05-2004, 11:06 AM
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For hogs, consider that you'll often be shooting them in low light (ie, dark pig against a dark background, in the dark.... you get the idea). Fine recticles disappear at night, something to consider.

The 'standard' Leupold duplex recticle is about as fine as I'd go, for hog hunting.
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  #9  
Old 09-05-2004, 06:04 PM
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Thanks for the help guys. When it comes to scopes, I'm interested in Leupold's VX-III 3.5-10x40 scope but for a few bucks more, i can get it in 4.5-14x40 scope. Many would say i dont really need anything over 3-9, but what variable scopes should I get?
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  #10  
Old 09-05-2004, 06:09 PM
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What is the smallest thing that you are going to shoot? Nothing against the 4.5x14, but I've shot prairie dogs with a 3.5x10, and didn't find it lacking.

The 4.5x14 seems that it could benefit from a 50mm objective, just a thought.
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  #11  
Old 09-05-2004, 06:44 PM
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MikeG you have been very helpful. I'm seriously gonna consider the Leupold VX-III 3.5-10x40 w/ Boone and Crocket reticle in the 1 inch tube. Thnx for your help.
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  #12  
Old 09-05-2004, 07:53 PM
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Everybody looks at the top power of a variable scope, but the bottom (lowest) power is important, too.
As the magnification goes up, the field of view goes down.
Dunno exactly what conditions you'll hunt in, but I did note the reference to hogs and low light conditions. If that also means close range, the wider field of view at the lowest power may help you find the target quickly.
For that reason, I'd lean towards 3-9. I have 4-16 power riflescopes, but they're on varmint rigs. On my rifles for game, none have more than a 3-9, and the ones that get used in the thick cover have 1-4's or 2-8's...
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  #13  
Old 09-05-2004, 08:20 PM
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Quote:
Originally Posted by FNFALmeister
MikeG you have been very helpful. I'm seriously gonna consider the Leupold VX-III 3.5-10x40 w/ Boone and Crocket reticle in the 1 inch tube. Thnx for your help.
Best of luck. If you don't like it, the resale value is pretty good, or Leupold will change out recticles for a modest charge, (if any).
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  #14  
Old 11-08-2013, 06:40 PM
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Quote:
Originally Posted by dmickey View Post
On a one-inch tube scope you have a one to three ratio from the lowest to the highest power in a variable scope. On a thirty millimeter scope you have a one to four ratio. Is it worth the extra weight? Only you would know.
I have a 3-12x40 with a 1inch scope. So That 1:3 max ratio can't be right.
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  #15  
Old 11-08-2013, 06:41 PM
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Quote:
Originally Posted by MikeG View Post
For hogs, consider that you'll often be shooting them in low light (ie, dark pig against a dark background, in the dark.... you get the idea). Fine recticles disappear at night, something to consider.

The 'standard' Leupold duplex recticle is about as fine as I'd go, for hog hunting.
illuminated reticules aren't much more expensive these days and worth it IMO.
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  #16  
Old 11-08-2013, 06:44 PM
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Quote:
Originally Posted by Jack View Post
Everybody looks at the top power of a variable scope, but the bottom (lowest) power is important, too.
As the magnification goes up, the field of view goes down.
Dunno exactly what conditions you'll hunt in, but I did note the reference to hogs and low light conditions. If that also means close range, the wider field of view at the lowest power may help you find the target quickly.
For that reason, I'd lean towards 3-9. I have 4-16 power riflescopes, but they're on varmint rigs. On my rifles for game, none have more than a 3-9, and the ones that get used in the thick cover have 1-4's or 2-8's...
Good point, and in most scopes the lower power magnifications have a bit clearer images as well.

Anyways I'm new to this site and just found it googling something. I'm not really a hand-loader but am interested in learning info on it and pretty much anything else, lol. Cheers.
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  #17  
Old 11-09-2013, 04:33 AM
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The actual internal design means more than 30 vs 1".

40 vs 50, the 50 will be brighter in similar scopes. The 40 will weigh less and likely will be bright enough.

1" vs 30mm...the 30 will usually have more adjustment which is useful FP dialing turrets to get on target. It will also be stiffer and more durable, albeit slightly. It will also weigh more.

So, I ask you....
Short range 0-400yds: Are you sighting in at one range and using it as a point and shoot?
Med range 0-600: Will you be interested in sighting in at one range and using the BDC reticle to shoot at 3,4,5,600 yards?
Long range 0-2000: Will you be using the turrets to dial in a precise zero for each shot depending on wind?

IME, people who are shooting game are best fit to a 3-9x35ish 1" scope. The BDC can be an excellent way to step this up a bit. Something like a Nikon Monarch 2.5-10x42 BDC 1" scope is light and reaches out a bit more. Your choice of the 1" VX-3 looks good too if you like Nikon lens coatings.
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  #18  
Old 11-21-2013, 06:04 PM
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Just go nuts...

Get a Millett LRS-1. They are 6-25X and have 140 moa of elevation adjustment. They are also 35mm in diameter. The diameter is from where it gets so much elevation. They are quite large, at something like 2Ĺ inches in overall diameter and about 23 inches long. I have one. I like it, but I am a scope-a-holic. I have maybe a dozen in all different sizes. I am looking at the Nikko-Stirling 10-50X for my next purchase. I need a twelve-step withdrawal program to curb my insatiable desire to buy scope after scope after scope...

The big Millett is not a hunting scope. It's a target scope. It's something you'd use from a solid rest. I shoot only from a bench, even when using low-power scopes. I have nothing against hunting or hunters. The numbers of game have to be intelligently controlled, lest they starve or end up being killed in large numbers by cars and trucks. I just don't hunt, that's all...
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  #19  
Old 11-26-2013, 05:11 PM
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Like your ex-girlfriend told you "Bigger IS Better" go with the larger diameter scope. More light is better.......
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  #20  
Old 11-26-2013, 09:13 PM
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Quote:
larger diameter scope. More light
I'm curious.
Where does this come from? Why does anybody believe this?
bsn and Tnhunter like this.
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