30 years of practiucal experience with handloading my own ammo, and being around a lot of newbies that came into this during the lastr decade, afyter "modern" equipment came on-line has told us a very important lesson : the most dangerous thing has been the modern "progressive" stations, where you in theory get one loaded cartrigde for each pull of the lever, after initial set-up. Admittedly they use volumetric powder measures, but that aint the culprit, per see, its lack if knowledge and experience, they don't know how to keep on top of things and loqad perform double or half-pulls on the lever, this faciliates a no-pwder squib load.... I got a pail with about 1500 duds from a beginner a year back, he lacks equipment for pulling bullets and gave up on the apparatus.... Its a hell of a job pulling all those bullets, some with double loads, some empty, bullets destroyed afterwards most of the time, anly recycleable resource is primed cartridge shells, powder to be burned in the back yard....

But it wasn't the powder measure, it was lack of knowledge!