Proof sizes

ОткрытьRelationship between bore/gauge size, proof sizes and calibre of smooth bore arms prior to the 1984—89 Rules of Proof The lines indicate the parameters of the nominal bore/gauge sizes marked to the right of the columns.

ОткрытьDimensions and parameters of nominal bore/gauge sizes of smoothbore arms under the 1984-89 Rules of Proof

ОткрытьChamber Lengths

Открыть1954 Rules of Proof converted to CIP values

ОткрытьMathematical conversion factors

ОткрытьShot loads