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30mm vs 1"

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Post Options Post Options   Thanks (1) Thanks(1)     Back to Top Direct Link To This Post Posted: April/27/2005 at 10:49
brush_buster View Drop Down
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Besides the size difference:  what are the advantages/disadvantages of these tube sizes?

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: April/27/2005 at 10:53
David View Drop Down
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A 30mm body will allow more room for the adjustments to travel.  More M.O.A. with a larger tube.

 

Dave

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: April/27/2005 at 17:22
Chris Farris View Drop Down
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30mm scopes were first made in Europe years and years ago for two reasons.

1. Everything was done by hand and a large tube was needed to be able to build the scope.
2. They are on the metric system.

When we started building scopes in the U.S. technology had advanced some and being on the Standard system we built our scopes with 1" tubes.

The German scopes were and are superior because they use better glass, better coatings and better craftsmanship. Most people assume that bigger is better and that must be the reason why German 30mm scopes are brighter. It did not take long for U.S. and Asian scope makers to catch on to this and start offering 30mm scopes. It worked for a while but more and more people are learning the truth with the advent of the Internet. When Leupold first offered a 30mm tube in a hunting scope, they named it the Euro. 30. A competitor dissected one and said, B.S. that scope has 1" guts with a 30mm tube. Leupold's spin doctors quickly changed the name of the new 30mm line of scopes to LR or Long Range and released press releases stating that this new line of scopes has 1" internals with a 30mm tube to allow for more elevation adjustments.

Bottom line is 30mm scopes are 30mm because of the Metric system, they can be brighter than a 1" scope with all other things being equal (# of internal lenses and diameter of objective especially) if the maker takes advantage of the larger internal lenses in a manner that manages the light better (cutting down on distortion and stray light loss).  30mm scopes are also stronger and usually heavier.  Biggest advantage is more internal adjustment travel for long range shooting.

 

related threads:

 

1 or 30mm tube

 

30mm/1inch SCOPES

 

30mm vs 1inch ?

 

30mm confusion

 

advice on 30mm vs 1" tubes, pls help!

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: April/29/2005 at 00:34
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Optics GrassHopper
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Thanks for the explanations from you both - very helpful.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: April/30/2005 at 20:55
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Chris,

 

That is a very good explanation on the differences between 1" and 30mm scopes. Mostly more adjustment range is all you get with a 30mm scope. The European scopes definitely make better use of the 30mm maintube.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/24/2005 at 08:17
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How is the super sniper insides made (do they have just 1 in guts) ?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/23/2006 at 12:26
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No they have 30mm parts inside not 1inch parts.It's a well made scoope and is quite rugged.

 

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/31/2013 at 22:53
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right on, thanks for the explanation and the links. Looks like I have some reading to do...
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/03/2013 at 14:04
Skylar McMahon View Drop Down
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Jay, Check out Riflescope School.
 
There is a significant amount of information that can really help in understanding the basics and fundamentals of riflescopes.
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