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<p>[QUOTE=&quot;carat_farmer, post: 25338638, member: 157686&quot;]You have to remember that the US Mint isn&#039;t required statutorily to check the weight of every single coin.&nbsp; So it&#039;s completely possible for out-of-tolerance coins to be in circulation, especially given how many coins are minted every year.&nbsp; </p><p><br /></p><p>I can&#039;t seem to find any official US Mint documentation on what their expected error rate is, but I bet someone has done the math after sampling and measuring some currency.&nbsp; If not it would be a neat project.&nbsp;&nbsp; </p><p><br /></p><p><a href="https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title31-section5113&amp;num=0&amp;edition=prelim" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title31-section5113&amp;num=0&amp;edition=prelim" rel="nofollow"><b>31 USC 5113: Tolerances and Testing of Coins</b></a> explains that the mint must measure a subset of each Group of coins minted, and what decisions to make based on those measures.[/QUOTE]</p><p><br /></p>

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