Found a good amount of pennies to go through today and pulled out 4 1982 D's. Only one weighs in at 2.5 rest over 3..here's a pic of each one..
To separate the coppers from the zinkers, just leave them out on your back porch railing. See which ones start to bubble up, like Alka-Seltzers.
Welcome to the forum, Christopher! Don't misinterpret the other gent's remarks about 82 cents. It's just that we've had an awful lot of threads centered upon them lately. As for your underweight coin, I assume you've considered zinc?