Weaver tactical 4x20x50 has Japanese glass.great turrets and can be found for under 700 if you look around. The 3x15x50 can be found for close to 600 as long as you don't want the Ill reticle in either model. If you prefer the sfp reticle the super slam series from them is the same glass. Depending on the model in the 3x15 has 70 or 100 moa of up. The 4x20 has 55 moa. This will need a 10-20moa base or the 10 or 20 moa inserts if you use the Burris signature rings.
The superslam series with the 30mm tube are limited to 41moa of travel. This may be an issue for a 308 even with the canted bases if you want to go to 1000 with some loads