Hi, I think my Hornaday GS 1500 Scale is Kaput and hears why- I did the calibration according to the instructions with the 100 g weight (is this 100 grams or 100 grains?) the machine was set to gn and the final outcome on the scale LCD said PASS. I then weighed a New Nickel and it weighed 7.88 grains and scale returned to 00.0, the Old Nickel showed 7.73 grains and then returned to 00.0. I then weighed the New Nickel in grams and it showed 5.14 grams and returned to 00.0, Old Nickel showed 5.06 grams and also returned to 00.0. This scale measures in G-grams, OZ-ounce, Gn-grains,CT-carot total, OZT-ounce total, DWT which I have not idea what that means. What do you think, Is this Hornaday GS1500 KAPUT? I would venture to say YES?? What do you think? It is out of warranty!!!