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<p>[QUOTE=&quot;ahearn, post: 743070, member: 18211&quot;]I just bought a small electronic scale (200g max - .01g accuracy) and a 50g calibration weight. Having no experience with weighing coins, I assumed I would find more consistency with mint weights on new uncirculated and proof coins. I don&#039;t know if there is a problem with the scale, with the calibration weight, or if there is more variation that I thought with the coins.</p><p>&nbsp;</p><p>Here&#039;s some results:</p><p>&nbsp;</p><p>2009 Silver Eagles UNC (mint weight=31.101g) - actual weight=31.32 to 31.36 depending on coin</p><p>&nbsp;</p><p>2006 Silver Eagle UNC - actual weight = 31.35 g</p><p>&nbsp;</p><p>2009 Mexican Libertad UNC (mint = 31.100g) - actual weight = 31.05 g</p><p>&nbsp;</p><p>2009 Canadian Maple Leaf Proof (mint = 31.100 g) - actual weight = 31.35 g</p><p>&nbsp;</p><p>On the Silver Eagles, the .25g overweight is small (less than 1%) but I suppose I was expecting something that was a bit closer -- and more consistency between coins that are supposed to weigh essentially the same. Any comments?[/QUOTE]</p><p><br /></p>

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