I have a Hornaday GS 1500 that calibrates with a "PASS" but when I do the same weight measurement on my RCBS 505 beam scale it shows it uis off in the measurement. I place an RCBC 100g weight on my beam scale and it measures 100g, I put the same weight on my Hornaday scale it measures 103.4 g which is 3.4grains more than the beam scale weights it at. Do you think that the digital scale is no good anymore? I calibrate the digital scale and it shows "PASS" but the weight measurement in not consistant with the RCBS beam scale. What do you think? Should I just cut my loses and buy another digital scale? I have been lucky and all my powder reloads were on the beam scale, the only thing I used the digital scale was to weight casings and bullets. Thanks, I think I have the answer but would like a second opinion.