1980 Half dollar that weighs 11.67 grams instead of 11.34 Grams

The 40% halves are supposed to weigh 11.5g.
But as it has been explained there is a range. 11.31g is still OK.
Sometimes they lose a little weight from 50 years of circulation.
Other times they are just a little light, or a little heavy. It's when the
weight difference is drastic that there is something else going on.

 

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Sounds good, appreciate it.

 

40% silver halves tolerance range is 11.1 to 11.9 grams