Hello, Because of my choice in Scope, the Nikon Bolt XR is only 8" in length. It has very little movement forward or back on the mounts. The only real adjusting comes in the way of the Picatinny Rail, and that also has very little adjustment room. My Mounts are the ones Danny Miller provided me, I believe they are medium profile. I am wondering if anyone has ever had the need to try Scope Extension mounts, or something similar to the Nikon P-series below? I really would like to go a inch or two further back, but I am not paying no freggin $50 like these Nikon rings go for, lol... Any ideas on how to move the Scope further back without spending much?