I use a RCBS MatchMaster and have been happy with it. I have read a lot about the A&D Fx-120I scale and wondered how my MatchMaster would compare. So I decided to order one and see for myself. The scale seems to be a well made, quality piece of equipment. I warmed up and calibrated both units. I dropped powder for 30 rounds of 300 WM with 70g of RE22 then weighed on the A&D. I had 7 rounds that read .02g lighter and 1 that was .02 heavier on the A&D. The rest were an exact match. Since each kernel weighs approx .04g, In the end it made no difference in what I was already doing. Maybe I just got lucky with 1 use but we will see what happens over time.