Answer (1 of 4): 12 gauge is a shotgun bore size . Bore refers to the number of round lead balls which exactly fit the bore which can be made from a pound of pure lead. 12 gauge ( nominal 0.73 caliber) means 12 balls to the pound, 16 gauge ( nominal 0.66 caliber) is 16 balls to the pound , 20g (
Is a 20-gauge shotgun the right gun to start off with? - Quora
Is A 4-gauge Shotgun More Powerful Than A 12 Gauge? Quora, 53% OFF
How far can a 12-gauge shotgun slug travel? - Quora
Is A 4-gauge Shotgun More Powerful Than A 12 Gauge? Quora, 53% OFF
When Was The 12 Gauge Shotgun Shell Invented? Quora, 49%, 41% OFF
What is the best shotgun you have used and/or owned? - The Gun
A Shotgun's Gauge, 50% OFF
America's 6 Favorite Hunting Shotguns - 24/7 Wall St.
What is 12-gauge? - Quora
A Shotgun's Gauge, 60% OFF
How are different shotguns classified? - Quora
What are hunting shotguns? - Quora
A Shotgun's Gauge, 60% OFF
