Searching for a 1971D 1977D on silver planchet

[Ben Cartwright SASS]

I have been weighing up the 71D's and 77D's trying to find one that is silver.

I decided to try using my reloading scale that I got at Cabella's for about $100, I use it to weight loads to a 10th of a grain. I calibrated the scale with 3 different 50 gram weights, one at a time.

I am finding that most clad halves are in the range of 11.20 to 11.35 grams.

I decided to weight up 40 of the 40% silver I have found this fall. I was really surprised at what I found. Most of the 40% halves were XF-AU, not worn at all.

The weights I am getting are from 11.10 to 11.75, they should be 11.50, they were all over the map, many in the 11.35 - 11.40 range.

Leads me to believe that weighing the coins to try to find an heavier one is a crap shoot at best.

 

[Bad Karma]

I think doing it by sound would be the easiest method to identify candidates for those types of coins.

 

[CW3(ret) US Army]

I have been weighing up the 71D's and 77D's trying to find one that is silver.

I decided to try using my reloading scale that I got at Cabella's for about $100, I use it to weight loads to a 10th of a grain. I calibrated the scale with 3 different 50 gram weights, one at a time.

I am finding that most clad halves are in the range of 11.20 to 11.35 grams.

I decided to weight up 40 of the 40% silver I have found this fall. I was really surprised at what I found. Most of the 40% halves were XF-AU, not worn at all.

The weights I am getting are from 11.10 to 11.75, they should be 11.50, they were all over the map, many in the 11.35 - 11.40 range.

Leads me to believe that weighing the coins to try to find an heavier one is a crap shoot at best.

I rim check 1st than use sound as a backup. I haven't missed a silver coin yet. If I found 1 of those than I would also use the scale as a 3rd test to be certain.
HH
Gary

 

[Twitch]

Weighing them will be the slowest and least reliable way to find a 1 in a 100,000,000 coin. Just date check your silvers.

 

[Ben Cartwright SASS]

I was playing around with my 40%ers and most are in the 11.3 to 11.7 gram range found one a 1967 that is 12.55 and doesn't show any clad on the rim. Took it to a coin shop and they suggested I send it to PCGS or someone to authenticate as it certainly appears to be 90% Most of my 90% '64's are 12.3 to 12.55 in weight.

back to the 71D and 77D, how does date checking them tell you if they are silver since most are clad? I am not sure the best way to tell on those.

The 1967 certainly looks interesting

1967 half


1964 half