07-16-2012, 06:39 AM
Welcome. That rifle looks sweet. I would recommend getting a 20 MOA cant scope mount, such as the LaRue LT-112 or similar. Take her out to 600yds first and get used to drilling it there, then ease forward.
There has been a lot of recent progress made with CFE223 powder and the heavier pills, like the 129gr Hornady SST, 130gr Norma Golden Target, and 130gr Berger VLD fed from modifed mags that allow a longer COAL. A PRI 6.8 mag will allow 2.3+ COAL, and I would get a 10rd model for this purpose.
Run a ladder test with your loads at 200yds to find your accuracy nodes with the higher BC pills. BWild97 achieved 2700fps from his 24" with the 130gr loaded long on top of CFE223, so a 20" could get at least 2500fps, if not 2620fps with the longer COAL that allows more powder. You won't be as competitive as a 6.5/.308-based case, since they push the 130gr and 140gr pills much faster, but it will be closer than a 123gr at 2500-2600fps.
There has been a lot of recent progress made with CFE223 powder and the heavier pills, like the 129gr Hornady SST, 130gr Norma Golden Target, and 130gr Berger VLD fed from modifed mags that allow a longer COAL. A PRI 6.8 mag will allow 2.3+ COAL, and I would get a 10rd model for this purpose.
Run a ladder test with your loads at 200yds to find your accuracy nodes with the higher BC pills. BWild97 achieved 2700fps from his 24" with the 130gr loaded long on top of CFE223, so a 20" could get at least 2500fps, if not 2620fps with the longer COAL that allows more powder. You won't be as competitive as a 6.5/.308-based case, since they push the 130gr and 140gr pills much faster, but it will be closer than a 123gr at 2500-2600fps.