I know the case volume and weight is a little different but you are on the same path as the FGMM 168 load. That round is 2650 FPS. The problem is the 210m's are like hens teeth.
Try the primer of choice and use the OCW starting with 42.0 and working up to 43.0. There is a hotter node but it is unnecessary if your not shooting 600 yards.
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