The Hornady manual says at 1.600" COL (Hornady case, Winchester WLP primer) to use 14.8 grains of 2400 as the starting load and 17.1 grains max. I spotted some warmer loads, but they all proved to be seated out to use the lower cannelure, so they wouldn't be safe in the smaller space.
BTW, that was me posting earlier, not Rifleman. I merely addressed my first remark to Rifleman.
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