answersLogoWhite

0

Think of a lead ball which is the diameter of the inside of the barrel of the shotgun. The gauge of the shotgun is the number of balls that size to make up one pound.

12 balls - 12 gauge

20 balls - 20 gauge

28 balls - 28 gauge

Exception - .410 bore is the actual bore diameter

User Avatar

Wiki User

17y ago

What else can I help you with?