Home Forums Hunting & Shooting Hunting Optics Advantages of 30mm Tube ?

Sorry I haven't kept up with latest advancements in optics, heck one of my rifles has a steel tube K-4 Weaver,I noticed Bushnell's price list had mostly 30mm tubed scopes. JB mentioned something in passing that triggered my curiosity.

Erector travel, beefier internals which have proven to be much more reliable vs 1” offerings.

If I’m not going to be dialing, I see no real advantages.

More weight and bulk, Some likem big and heavy

DT2- the 30mm can be lightweight but if you want longer range get a 1" tube. The smaller 30 MM tube gets you less elevation clicks, the 1" gives you more elevation clicks and the apprearence of more light transmission, but you pay for it in weight. Seems like the difference is what distance are you planning to shoot and how much weight do you want to carry. Good luck!

Several things wrong here.

Got that backwards: 1" < 30mm. Some of the more popular LR scopes are going up to 34mm and 36mm tubes now.

i kinda feel the 30 tube scope is better for heavy recoil too over a 1 inch tube in the better brand scopes or just better stronger adjustments that stay on target better sighted in ?

If that's not enough, the long range guys are using 34mm tubes...

You sure about that?

In addition to the previously mentioned, 30mm tubes have a stiffness advantage over 1”, as well.

And larger as well.

After using 34mm tubed scopes, looking through a 1” or 30mm tube seems like looking through a straw

Really depends on who makes the scope, and things like objective lens size and magnification. A 1-4x24mm in a 1" tube is likely going to be pretty sturdy, but a 5-25x56 with a 1" tube is going to be a lot more floppy than a similar 30mm tube scope. Scope tube diameter doesn't guarantee internals durability (as Vortex and Leupold can attest to - plenty of issues with their 30mm tube scopes in regards to durability and holding zero even on non-boomers).

Can you attribute that to the 34mm tube per se?

I guess so. Try it by looking at a few mounted on rifles, side by side.

I'm not doubting what you've seen. I believe there's more to it than just the tube diameter. Side by side with a couple of 1" scopes can show significant field of view appearances.

Almost sounds like some sort of AI or English as a second language at least. Other posts are as odd.

I do like the handle “blammo”, though. 😂😂😂

Everything a 1” scope does, a 30mm does better. But I do also think there is a point of diminishing returns. I personally see no need for 34m+, at least not in a hunting scope.

i have had excellent pin point accuracy with my Nightforce 30 tube scopes they stay zeroed in and even on my 338 Lapua .

Those have a positive reputation for toughness.

I seriously doubt that. In a riflescope everything does through the erector tube inside the main tube and then the eyepiece. The erector tubes are pretty much the same diameter, around 19-20mm.

An inch tube is 25.2mm in diameter, with a wall thickness of 1-2mm, you get some adjustment range.

A 30mm tube usually has the same wall thickeness as the inch tube so you have 4.8mm more edjustment range.

Many 34mm tubes have thicker walls, maybe up to 4mm thick. So they don't have more adjustment range than the 30mm tubes, but they are far more sturdy and stable in the sun and against shocks. I would think there may be 34mm tubes than trade wall thickness for extra adjustment range, but the further you move away from the center of the first focal plane, you may encounter some IQ degradation.

The FOV is a function of the size of the eyepiece, among other things; the size of the main tube by itself, doesn't enter into it.

When you compare riflescopes, get all the specs for it. I looked at the specs for the Leupold VX-freedom series and their 1 inch tubes riflescopes have good FOV specs, right in line with the 30mm tubes of the same magnification.

No soup for you. (To coin a phrase.)

Ive read this several times, and im still in need of an expert explanation of it.

The explanation is he's got everything backwards.

He’s got the right understanding, just 180 degrees opposite.

Apparently it was written by an IA bot...

I see what you did there, but that could be fitting for the IA bot known as the wabigoon too, eh?

Dyslexics of the world UNTIE!

Blammo is full of immigrant sausage.

Lysdexics 😁

Soup Nazi!

IOR Valdada has some scopes with 40mm main tubes.

Right, and they have a greater range of adjustment, up to 100 MOA, so the erector rube is not any larger, it just has more room in which to move. The erector tube dictates the amount of light coming to the eyepiece.

Ah, a Seinfeld afficionado, I see.
Come back, one year!

😂😂😂

If you google the body of the verbiage, Bing AI leads you to a tractoptics blog page and an accurate ordinance web page of some sort. The language cited looks virtually identical to me.

My opinion is that this poster has no credibility.