So, I have a .308 700P. Bone stock. Vortex Viper PST 6-24 FFP. The scope sits on a POS aluminum Weaver 20 MOA rail. I needed to add a .010" shim under the back of the rail because when the front was tight, there was a .010" gap in the back. Leupold PRW steel rings. With this set up and a 100 yard zero, I have 44 MOA of elevation. (Does this seem about right as it is a 60 MOA scope?) So I am thinking a nice steel rail may help. At least the shimming issue, and maybe a better rail will add a few MOA. With this in mind, I stop at the LGS at my local range. I ask if they can get a Ken Farrell rail. After looking, no. Man behind the counter inquires what it is going on. I give the above info. "How far are you looking to shoot" 1000 yards I reply. "Never do it with that gun. You need Vortex HD with larger tube and a custom action. When you're ready to shoot that far, come in and we will build you a gun that will do it." Besides the fact that he came off as sounding like a used car salesman, is he right? Of course, I replied that in the '60's guys were making those kinds of shots and would have given their left nut to have the set up I have... I have already shot steel at 800 yards with same gun, sans the scope that at the time was a Leupold VX-II 3-12. Today I fired a 3 shot group at 600 yards. One flier cause I miss read the wind. The other 2 were within .25" of each other in elevation, and 2" apart in windage. Finally, my ballistic calculator, that seems to fit my rifle and loads extremely well, says 42 MOA at 1000 yards. I have 44 MOA. Should I go to 30 MOA, or get 20 MOA (Ken Farrell) and see if the better rail magically adds a few MOA? Almost forgot most important part... Shooting paper and steel only at 1000 yards! Current load data: SMK 168 over 44.0 gr IMR 4064 in Wichester/Black Hills brass with CCI BR2 primer clocked at 2650 fps. I realize I may need to work up a 175 gr load.