What rings do I need for my scope?

The scope rings have to match the tube diameter of the scope. So a 1-inch scope needs 1-inch scope rings and a 30mm scope needs 30mm rings.

What are the different size scope rings?

Riflescope tubes generally come in three sizes: 1-inch, 30mm, and 34mm. (There are some vintage and vintage reproduction scopes that have ¾-inch tubes, but they’re not something you’re going to mount on any gun for today’s hunting or competitive target shooting sports.)

Are lap scope rings necessary?

When using some designs of scope mounts, lapping is recommended to get the best performance. Lapping can increase the amount of surface contact between the ring and scope tube, and also help with proper alignment between the scope rings.

What size rings for 34mm scope?

As a guideline, your scope rings must match the diameter of your scope’s tube: a 30mm or one-inch ring won’t cut it with a 34mm scope. Added to this, the scope sits at a distance above the rifle’s bore, indicated by the height.

How close should your scope be to the barrel?

Our recommendation is no less than 1/8th of an inch of clearance between the bottom of the objective and the top of the barrel.

What size rings for 42mm scope?

Ring Height

How far apart should scope rings be?

Install the optic in the rings at the highest magnification, but don’t completely secure the ring screws quite yet. We recommend spacing the rings no closer than 3/8” from the magnification adjustment ring in the rear, and centered, or slightly forward of center on the tube in the front.

What is a lapping bar?

To oversimplify, lapping simple means “sanding” the interior of the ring to obtain a perfectly smooth and precisely shaped surface. Using a perfectly shaped steel rod, one grinds and smooths the rings using a lapping compound until the rings are ground ever so slightly into the perfect shape.