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Can You Believe It - .50 BMG Rated?! We received a Facebook message from Grant H., one of our customers asking if our Keystone Rings were .50 BMG rated. He had another brand's rings that were .50 BMG rated and he had issues with them. We responded saying we had not tested them on a .50 before, surprisingly, no one here has a .50 BMG rifle with a spare handful of rounds ready to go. Being the curious folks that we are (George even has the shirt to prove it), we sent a set his way for som …

How to Install Our Scope Mounts You need to mount your scope to your gun, but how? There are many different options, but one of the most common ways to get your glass on your gun is by using an accessory rail. Which one should I choose? Well, a picatinny rail of course. Picatinny rails have a standardized set of dimensions which allow manufacturers to make rails and rings that will play nicely with other picatinny products. These include cross slot widt …

MOA, or Minute of Angle, is an angular unit of measurement used by precision shooters to describe a rifle's accuracy and adjust a scope's sights. Put simply, it is 1/60th of a degree. Because of this angular measurement, the physical distance an MOA represents grows as the target distance increases. For easy field math, shooters approximate 1 MOA to equal 1 inch at 100 yards. Understanding MOA at Different Distances The core concept of MOA is that it represents a small slice of a circle. The fu …