I use the RCBS Competition Powder Measure. It's essentially a Uniflow with a micrometer adjustment. It's very consistent, usually +/-.15-.2 from target load.
If you're looking for a scale on Amazon, I use the Truweigh Echo and the AWS Gemini-20.
Truweigh Echo Digital Milligram Scale https://www.amazon.com/dp/B073X7QSBB/ref=cm_sw_r_apan_glt_fabc_WCB7DYX3BQY9DGBHM773
American Weigh Scales - Digital Milligram Scale - Multi-Use, 20 x 0.001g - GEMINI-20-SIL - Silver https://www.amazon.com/dp/B00IJCGPDW/ref=cm_sw_r_apan_glt_fabc_K7D54Q6C0R05383HKS83