So I have a RCBS M500 mechanical scale. I also have a set of RCBS check weights. When I adjust the scale and set it at zero and check it against the check weights it never comes out right. Now usually I go by my chargemaster and check it against a smaller electronic scale when needed (they're usually within .1 of each other) and against the M500 if I feel really unsure, but the scale looks to be farther off. This has yet to be a safety concern as I tend to use powder charges under the maximum pressure. But for safety's sake if I do start using higher pressure charges, should I trust the scale or the check weights?Information
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