“No. 1 is get really good bullets a few ten-thousandths larger in diameter than the barrel's groove diameter”
Is that .010” or 1/10 of one thousandths, a good way to keep up with that is think of the number of pennies in $10.00. Not my intension but many reloaders ran into the curb when I wrote one thousandths meaning a pennies worth of $10.00, it just locked them up, so I started making expressions like .001” for one thousandths as in 1/1000, I will not say the change made anyone happy, seems they moved on to complain about something else
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F. Guffey