Needed more moa for 338 lapua - Barrett ExRings With Dual Setting of 20-30 MOA 34mm 1.7 Inches High 66870

I have a 20moa rail on the AR30A1338 Lapua. I regularly shoot 600 to 1200 yds using a 300 winmag, so I wanted the 338 Lapua to be zeroed at about 1200 yds. This would give me approx. a range of 300 yds to 1 mile. These rings are perfect for giving me that range of adjustment. I use a 34mm tube, March 8-80 scope. Initially, make sure that you set the rings at 9 grooves apart. I didn't and lost about 3 to 4 moa. (too far apart). The quality of the rings are above and beyond. Barrett quality as expected! Optics planet met others' pricing as well as had them dropshipped direct, even though they weren't in stock. Thanks OpticsPlanet.