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**Unclenick** · September 15, 2011, 04:02 PM

I hate to burst bubbles on coins, but when this came up a couple of years ago on another forum I took a lab scale and weighed randomly selected quarters. The results were:

35 quarters in total:

Mean (average) weight:
87.62 grains

Highest:
89.02 grains

Lowest:
85.70 grains

Extreme Spread:
3.32 grains

Standard Deviation:
0.78 grains from mean.

I haven't repeated this with any other coin, but unless I do, I won't have much greater faith in their repeatability. As I write this, I just grabbed the five dimes I had in my pocket and put them on a loading scale. Being the lightest coins they should have the least deviation:

35.1 gr.
34.8 gr.
35.0 gr.
34.9 gr.
34.6 gr.

So a half grain spread. More dimes and it will get bigger.

Nick

September 15, 2011, 04:02 PM	#14
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,063	I hate to burst bubbles on coins, but when this came up a couple of years ago on another forum I took a lab scale and weighed randomly selected quarters. The results were: 35 quarters in total: Mean (average) weight: 87.62 grains Highest: 89.02 grains Lowest: 85.70 grains Extreme Spread: 3.32 grains Standard Deviation: 0.78 grains from mean. I haven't repeated this with any other coin, but unless I do, I won't have much greater faith in their repeatability. As I write this, I just grabbed the five dimes I had in my pocket and put them on a loading scale. Being the lightest coins they should have the least deviation: 35.1 gr. 34.8 gr. 35.0 gr. 34.9 gr. 34.6 gr. So a half grain spread. More dimes and it will get bigger. Nick __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle Last edited by Unclenick; September 15, 2011 at 04:32 PM.