In my .45 Colts tests above, I did nothing special to load the cases. Ie. I did not weigh every load. Once I had the weight I wanted, I just cranked the set out with a Hornady powder measure. I thought the results turned out pretty good considering... Ie. satisfied with the metering as this is how I normally would load a box of shells anyway.... Yes, AA#5, True Blue, W231, etc do meter much more precisely, bit Herco wasn't bad at all.