Information from my own personal investigation showed that numerous 12 gauge guns I checked weighed from six to ten ounces less than the stamped barrel weight. One 12 gauge gun that I know had the barrels honed/polished out weighed 12.5 ounces less than the stamped barrel weight. An untouched 8 gauge set of barrels were 14 ounces less than the stamped barrel weight. An untouched 20 gauge set of barrels weighed 8.5 ounces less than the stamped weight.
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