Played with seating depths yesterday and found little fruit for my efforts. Seated bullets at .010" incraments from 2.810 down to 2.770 and found that all produced groups between 3/4-1". Another nice comforter is that all groups centered 2" @ 10:30 (+/- .1" no kidding)
Of course there was the exception: 2.780" shot a .4" group.
All loads tested used Lapua brass, 42.3grs of H4895, and F210M primers.
What a pricey venture for a hunting bullet. Please use this data for your consideration in working up a TSX load, it cost me almost $80 to find this one, and there aren't any left-overs for me to practice with.