These little dudes are all over ebay and amazon for 15 bucks or so, and they work. You can trickle with them, they're fast, and they weigh grains to two decimal places.

I'm currently weighing out a rough charge initially on a Hornady Autocharge dispensing system, then finishing the weighing on one of these. Works fine, just have to keep fresh batteries in it. I'll never go back to beam scales.

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