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<p>[QUOTE=&quot;Vess1, post: 444361, member: 13650&quot;]No way these are off by 1 gram.&nbsp;&nbsp; As I said, I calibrate with the two 50 gram bars every time.&nbsp;&nbsp; I also happen to have some test weights for calibrating a scale for gun powder.&nbsp; Only these are in grains, which are much, much smaller.&nbsp;&nbsp; The 1 grain weight is a tiny, straight piece of metal about 1/4&quot; long that is so light, you cannot feel it in your hand.&nbsp; </p><p><br /></p><p>&nbsp;I set the scale to &#039;grains&#039;, set it on there and sure enough, it registered 1.0 grains exactly.&nbsp;&nbsp; One grain is 0.0648 grams.&nbsp; The other calibration weights were dead on every time as well.&nbsp; Never off by even 0.1 of a grain.</p><p><br /></p><p>&nbsp;I do have one smaller though at half a grain.&nbsp; The 0.5 grain weight was too light and didn&#039;t register on the scale.&nbsp; FWIW.</p><p><br /></p><p>&nbsp; As far as the low cost, from what I&#039;ve seen, it has more to do with the limits of the upper end of the scale.&nbsp; These only weigh up to 100 grams or roughly 3.5 troy ounces which isn&#039;t much.&nbsp; Low end accuracy isn&#039;t sacrificed.&nbsp; Surprisingly.&nbsp; You start paying much more when they can be this accurate but can still weigh heavier objects.[/QUOTE]</p><p><br /></p>

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