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From the url given by JD:
"The gauge number is intended to be the number of lead balls per
pound, the balls being of a size that will just fit into the barrel."
That word 'gauge' has TOO MANY meanings ! ! ! ! !
Why can't it be INVARIANT ! ! ! ! ;-)
At 4:48 AM -0700 1/19/10, John Denker wrote:
On 01/18/2010 05:21 PM, curtis osterhoudt wrote:_______________________________________________
Specific gravities: Pb ~ 11;
... from which you can calculate the bore diameter of
a 12-gauge shotgun.
http://www.unc.edu/~rowlett/units/scales/shotguns.html
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