Oh, about .1811024 inches, as the crow flies. But seriously, folks, in the last few years scope makers have introduced wider 30mm tubes. The reasoning behind such actions is that if a larger objective gathers more light, a larger tube should be a good idea, too.

The main consideration in a 30mm tube scope is that you will need 30mm rings. Swift rifle scopes are available in both 1" and 30mm tubes.

About LifeTips

Now one of the top on-line publishers in the world, LifeTips offers tips to millions of monthly visitors. Our mission mission is to make your life smarter, better, faster and wiser. Expert writers earn dough for what they know. And exclusive sponsors in each niche topic help us make-it-all happen.

Ask a Question

Not finding the advice and tips you need on this Hunting Scopes Tip Site? Request a Tip Now!

Guru Spotlight

Jennifer Mathes, Ph.D.

Ever wonder how you could make your life better and more fun? So have tens of millions of fans who have turned to LifeTips for answers over the past decade. We keep the tips, advice, books, podcasts and writing services flowing, so you can keep your life and business growing in the right direction. Upward!