Dandy Auto Trickler. I purchased the original, without the scale stop, and it worked so well I purchased this upgrade. I have used the Dandy Auto Trickler with the Redding and RCBS 10-10 scales with success. It has been used with cartridges less than 20gr, (.17 Fireball) to over 100gr (light bullets in the 300 RUM). Even coarse rifle powders like VV N-570 (the kernels weigh a tenth of a grain each) will work reliably. Fine ball powders like H335 and Terminator also are a pleasure to use with the Dandy. $69 delivered.