Quite posssibly, a change in bullet mfg. will not change POI - especially with .375's.

If I recall correctly, AR2206 is just barely slightly faster than AR2206H. Your 47.0gr. of AR2206 should bring it in line closely with my 9.3x57 load of 48.5gr. H4895. Worked on a Moose last fall at 200 yards!