I've used several powder measures over the last 46 years and would only consider buying a Redding, RCBS, Lyman, Hornady or Lee. Seriously. There just isn't much average difference in what any of them can do, that's why you see such a range of satisfied owners of each one. And the very high cost 'BR' grade measures sure aren't worth the price to many of us, they just don't make much difference.
What we need from a measure is consistancy. Consistancy of the RIGHT OPERATION METHOD for each measure AND the powder being dropped matters a lot. I suspect most folks never bother to learn what actually aids consistancy with their measure and different powders. Fact is, any measure will drop fine powders pretty consistantly. Nothing will drop coarse stuff very consistantly so we drop low and trickle up if we want to precisely charge with coarse powders.
Lyman's 55 is the most versatile tool but the user has to understand the proper way to adjust his charges; large, medium or small. Others will need a second (costly) measuring chamber to deal with large rifle down to small pistol charges. All of them will eventually bind with thin flake powders. Lee's Perfect Powder measure isn't perfect but it's about as good as it gets for coarse powers, tends to leak small amounts of ball powder, especially if the user is a mechanical klutz.
Bottom line, there is no BEST - we take our choice and learn to use it best we can.
