Measuring the bore diameter using solid spheres of a diameter equal to the inside diameter of the barrel that could be made from a pound of lead is done in which weapon?
A) Semi-automatic
B) Shotgun
C) Revolver
D) Machine gun

Question

Quizplus · Accepted Answer

The method of measuring the bore diameter using solid spheres of a diameter equal to the inside diameter of the barrel that could be made from a pound of lead is specifically used for shotguns. This is a traditional way of determining shotgun gauges.

Measuring the Bore Diameter Using Solid Spheres of a Diameter