Back in 67 when I started reloading,a friend recommended the Belding& Mull powder measure. The thing was new but looked antique even back then. I have never used any other measure,so can't compare. Have read many times on several boards about certain powders that did not meter well in one type or the other powder measure. I have used all types of powder in my B&M and never found one it wont throw consistent charges of. Go to EBAY and do a search for Belding & Mull and these measures do show up there---but they are pricey.