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1 inch or 30mm |
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pc4life
Optics Apprentice Joined: August/29/2012 Status: Offline Points: 96 |
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Posted: August/02/2013 at 14:03 |
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Any advantage to 30mm as opposed to 1 inch tube other than more adjustment? Or is it like wheels (15-16-17-18inch-etc.) You know, making up for other "deficiency's".
A show of status seems to have trumped all sorts of common sense in this age of political correctness. |
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Hunter22
Optics GrassHopper Joined: June/18/2013 Location: Madison Status: Offline Points: 11 |
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30mm will allow for more elevation and better durability opposed to a 1inch. Some will say light gathering ability, I wouldn't mind hearing why people think this.
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RifleDude
MODERATOR EVIL OPPRESSOR Joined: October/13/2006 Location: Texas Status: Offline Points: 16337 |
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30mm tube scopes allow for more W/E adjustment room, but that doesn't necessarily mean they have additional adjustment in reality. It all depends on the erector assy diameter, erector spring design, adjustment mechanics, and how much room is in the turret saddle.
30mm is technically a stronger main tube than 1", but in actual use, that "advantage" rarely, if ever comes into play. 30mm tubes in some cases permit slightly better resolution by allowing the designer to use larger diameter erector lenses and therefore less lens curvature. Some scopes with complex optical designs simply aren't possible to manufacture with 1" tubes (extreme zoom range, for example). The fact that some high end manufacturers only offer 30mm tube scopes and/or they reserve their best technologies for their flagship models (which are usually 30mm scopes) sometimes means you're getting a higher performance scope when you buy some mfg's 30mm versions. |
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Ted
Money can't buy happiness... but it's much more comfortable to cry in a Porsche than on a bicycle. |
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mike650
Optics God Joined: May/14/2006 Location: West of Rockies Status: Online Points: 14569 |
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It looks cooler...
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“A hunt based only on trophies taken falls far short of what the ultimate goal should be.” – Fred Bear
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RifleDude
MODERATOR EVIL OPPRESSOR Joined: October/13/2006 Location: Texas Status: Offline Points: 16337 |
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Because a couple scope manufacturers at one time were making that claim for marketing reasons, and certain gunwriters were repeating this fallacy. On its surface, that sounds plausible when you compare scopes to other items the consumer can relate to, ex: larger diameter pipe = greater volume of water, etc. 30mm tubes offer no light transmission advantage vs. 1" tubes. |
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Ted
Money can't buy happiness... but it's much more comfortable to cry in a Porsche than on a bicycle. |
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mike650
Optics God Joined: May/14/2006 Location: West of Rockies Status: Online Points: 14569 |
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^^^^^^^^ Best Answer |
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“A hunt based only on trophies taken falls far short of what the ultimate goal should be.” – Fred Bear
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pc4life
Optics Apprentice Joined: August/29/2012 Status: Offline Points: 96 |
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Are all manufactures eventually going to a 30mm or larger? Planned obsolescence seems to be the future.
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Hunter22
Optics GrassHopper Joined: June/18/2013 Location: Madison Status: Offline Points: 11 |
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Thanks Ted, makes sense. Kind of what I thought, just didn't want to post anything that I wasn't 100% on. |
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Hunter22
Optics GrassHopper Joined: June/18/2013 Location: Madison Status: Offline Points: 11 |
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30 mm tube is not needed for Varmint scopes in my mind you sight in your scope at 50 or 100 and rarely touch the turrets after. Also, they are generally low recoil guns so durability is not as big of a factor. It would only add to cost. I don't see 1" tubes going away anytime soon. IMO |
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Sparky
Optics Master Extraordinaire Joined: July/15/2007 Location: SD Status: Offline Points: 4569 |
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That is why I only purchase 30mm scopes. |
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Sparky
Optics Master Extraordinaire Joined: July/15/2007 Location: SD Status: Offline Points: 4569 |
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To each his own. I prefer to dial corrections. |
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Hunter22
Optics GrassHopper Joined: June/18/2013 Location: Madison Status: Offline Points: 11 |
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RifleDude
MODERATOR EVIL OPPRESSOR Joined: October/13/2006 Location: Texas Status: Offline Points: 16337 |
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Depends on your definition of "varmint" and whether you dial in LR drops with turret or dope drops with BDC type reticle. I frequently use my "varmint rifles" to shoot prairie dogs, where shots well over 700 yds is very common.
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Ted
Money can't buy happiness... but it's much more comfortable to cry in a Porsche than on a bicycle. |
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pc4life
Optics Apprentice Joined: August/29/2012 Status: Offline Points: 96 |
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I suppose 30mm or larger will make what I have obsolete and if that doesn't. Digital scopes or something like it will make everything else I am going to purchase in the near future obsolete.
Can't beat the MAN. |
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JD548
Optics Apprentice Joined: June/29/2013 Status: Offline Points: 147 |
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i would say never worry about what is technically obsolete provided it is still good for whatever duty you have planned for it.
i'm sure 30mm tubes have some advantages , but very limited advantages over a 1". if it comes down to it a better glass 1" is better than a 30mm. i like 30mm mainly because they fit the AR-15 mounts i have --so that is the big advantage to me. not of enough advantage to prevent me from buying 1" scopes though. we will probably see some even bigger tubes in the future --with very high price tags on um. personally i don't see spending a lot of money just to get a 30mm, if it just happens to be a 30mm , that is also fine by me. i got a very nice burris euro 30mm scope , but the 30mm tube is not what makes it tick --it is the good glass, coatings, lenses and turrets that make it shine. in some whys this is the same as the discussion about 50mm lenses , they do help in some areas but a good 40mm can certainly hold is own with it in most situations. |
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claimbuster
Optics GrassHopper Joined: January/31/2010 Location: Colorado Status: Offline Points: 4 |
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When it comes to looks, I am just the opposite. On a nice light, trim rifle you mount that big old globby 30mm scope and it looks like chit!
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My wife says I don't listen to her....or something like that.
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cheaptrick
MODERATOR Joined: September/27/2004 Location: South Carolina Status: Offline Points: 20844 |
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Huh??
The difference between a 1" tube and a 30mm tube is .18 inches. |
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If at first you don't secede...try..try again.
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Sparky
Optics Master Extraordinaire Joined: July/15/2007 Location: SD Status: Offline Points: 4569 |
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My thoughts exactly! |
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Peddler
Optics God Joined: July/04/2012 Location: Oswego,NY Status: Offline Points: 13526 |
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musta got a bad clam! |
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When you are dead, you don't know you are dead.It is difficult only for others.
It is the same when you are stupid. |
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Urimaginaryfrnd
MODERATOR Resident Redneck Joined: June/20/2005 Location: Iowa Status: Offline Points: 14964 |
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Most of the top quality tactical rings are available in 30mm but a lot of those are not available in 1 inch.
We are seeing an increasing number of new tactical optics in sizes larger than 30mm also. Also just because a scope has a 30mm tube doesnt mean that it is big and clunky. I have this 30mm scope and love it.
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"Always do the right thing, just because it is the right thing to do". Bobby Paul Doherty Texas Ranger |
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