I was having trouble with my long range shooting getting the most dynmic range out of my leupold. I needed 10MOA adjustment range to reach 800yards and I noticed I was bottoming out of the scopes adjustemtn and my adjustment wasn't centered anyway. so I started using the Burris rings with the offsets. Just the trick I needed. I haven't had any trouble out of my 300RUM so they can handle recoil well.