I copied this from a conversion site:
0.001g = 0.0154323580gr
I copied this description of the Gemini 20 from an on line store:
"Get quality and accuracy with the Gemini-20 digital gram scale. The Gemini-20 is accurate to 0.001 grams.
So the scale is accurate to (rounding off) 0.02 grains
There's a fundamental flaw in a system that passes laws that put an onerous burden on law-abiding citizens, but fails to prosecute the criminals who break those laws.