If you look at Alliants 12 G data lot of Unique loads for 1 1/8 oz at about the charge weights you mentioned. 12s are not 10s but all are fair amount higher in pressure than the 19 g Red dot 10 g load tested.
When powder was in short supply I tried to work up a 1150 fps 1 1/8 oz Short ten load with Unique. Everything at target velocity left a lot of unburned powder. Found a 23 G Green Dot load that worked, at higher velocity and unburned powder left in the bore. Drop it down to 1150 fps more unburned powder, not as bad as Unique still not very satisfactory.
William
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