Deering Optics Terminology

10 Sporting Optics Terms, Explained

You just want to buy a scope, but wading through all this optics terminology can be intimidating. What do all these words even mean?

MOA vs Mils: Which Is For You?

If mils and MOA have you confused, here’s a breakdown of each system’s math and how the measurements work.

4 Optics Terms Made Simple

Buying a riflescope can feel complicated, but knowing some key terms will help you make the best choice.

Optical Illusion: Understanding Parallax—and Why It Is Important

The concept of parallax is difficult to comprehend, and often even more difficult to explain. Here's a great primer.

Do You Need a Canted Rail?

What’s a canted rail, and why might you want to put on on your rifle?

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