I just recently purchased a Jack Weigand mount for my 500 S&W. The scope mounts came with four rings and i applied two to my scope because that is the normal thing to do. Well it turns out that the 500 has so much power it rocks the mounts and my scope moves all over the place. It actually pushed the scope fourward. I did not realize this happened until after i bore sighted it and took it out hunting two days ago. An dthe Scope mounts came with friction tape that i applied. I don't know what to do in this situation because I can not put both mounts on the rail. If anyone could help me, i would greatly appreciate it.