Review on 🔍✅ Accurate Calibration Weights for American Weigh Scales - 10mg and 500mg by Troy Arnold

My set arrived without two 2 gram and 1 gram weights. To Revane's credit, the replacement arrived and was completed within 24 hours. Engravings in grams and heavier look steely. It's not well polished so I don't know if it will hold up in the long term. Fractions of gram weight are small pieces of metal, likely cut from stamped metal. In terms of accuracy, I used 5g and 20g weights to calibrate a recently purchased M505 scale and found that the scale and weights were within the scale's mechanical accuracy limits. In both cases, the scale read the weight to the tenth of a grain, slightly off-center within the arrow in the appropriate direction (which makes sense since 20 grams = 310.64 and 5 grams = 77.16, not even a grain in either case) . The weights seem accurate within my measurements of my gear, and multiple weights in the 1, 2, and 0.5 gram categories allow me to find the right mix to zero my M505 scale to the approximate weight of Powder I is measured during reloading.