I thought, in general, lead requires less powder than jacketed for the same bullet weight? So why does that book show the following: 124gr jacketed Unique 4.8 - 4.9 125gr lead Unique 5.3 - 5.5 For other powders the min/max seem to be mostly the same (within .1). Why is Unique, uh, unique? BTW, does anyone know if the powders are sorted in any particular way in that book under each bullet? They just seem to be in random order as far as I can tell.