A post from 'Hunting Nut' website quotes Nosler No.5 manual for Nosler 160gr partition and H870:
Start load 75.5gr/2982ft/sec
Mid load 77.5gr/3047ft/sec
Max load 79.5gr/3112ft/sec
and
Old Hodgdon paper data booklet for 154 - 162gr bullet:
79gr/3099ft/sec in 26" barrel
Hope that gives the general direction.
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