You've just learned that Unique is a bit "fluffy". Not as light-for-volume as Trail Boss, but it takes up far more space than most cut flake, and especially spherical, powders.
I've read multiple reports AND run my own reloads with both old and new Unique and they really *do* shoot the same, by charge weight.
You have also learned that Unique "not metering well" is mostly internet myth. It's also very forgiving if charges vary by +/- .2 grains (.4 spread). Accuracy does not always require weighing every charge.
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