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I wanted to provide some updated information on loads for the .338-378 Weatherby, now that I’ve had a chance to work with Hodgdon H870. 123.0 grains H870 250 grain Sierra spitzer soft point boattail CCI #250 large rifle magnum primers Avg. MV 3,210 Avg. group size 3 shots well under .700″ Temp was about 52°F…

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