I don't know anything about 380 though. I assume the difference between low pressure and high pressure could be an extremely small amount of powder.
Aye. A few loads I have come across (and tried one) with Titegroup have a total charge weight spread of 0.3 grains. It would be something like 2.6 gr starting, 2.8 gr max. ...Doesn't leave much room for error (and sometimes the starting load won't cycle, while the max load is too hot). Most powders (and most Titegroup loads) are more forgiving in the .380, but some bullets and powders can be frustrating.