What type of lighting does your reloading room have?
Are you using batteries or the Ac adapter?
I have the same scale and the most it drifts is 1/10 of a grain.
I have it plugged in and powered up 24/7.
A stable room temperature is also essential when using an electronic scale.
I have a set of RCBS check weights which I use to confirm that my scale is accurate at the weight I'm measuring.
For example my .308 load is 40 grains so every 5 charges I throw my 2 20gr test weights into the pan to confirm.
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