I use EGW Heavy Duty rails. Mounting a 20MOA right now on my Savage 110 FCP HS Precision .338 Lapua Magnum. Funny thing is it came with a 20MOA EGW rail, but the EGW Heavy Duty rails are waaaaay better than their standard ones. The EGW HD rails are one-piece scope mounts that are precision machined from solid 7075 T6 aircraft grade aluminum. I like how the picatinny slots run the full length, for max options. The cross slots are also machined the full width of the mount and gauged to MIL-STD 1913 specs maintaining tolerances of +/-.002".
Course if you can afford some of the titanium or steel one piece rails out there, then you could squeeze a little more performance out of them, but at $69 the EGW HD rails in my opinion are the best "bang for your buck" (pun intended