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according to alliant 5gr is the max for a 147gr golddot HP so i would start at 4.5 gr and work up for your 137gr bullet. Although i'm assuming you meant 147gr and not 137gr in which case i would start at 4gr and work up.
For the 124gr bullet they list a max of 6.4gr for a 124gr golddot HP so i would start at 5gr and work up.