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What is the origin of shotgun shot size. I know Gauge is the number of balls in a pound of lead. Where did shot size come from?
Wiki User
∙ 15y ago
Shotgun gauge diameter is determined by how many balls of lead the diameter of that gauge will equal one pound. Thus it takes 10 lead balls of 10 gauge diameter to equal one pound of weight. And 16 lead balls of 16 gauge diameter to equal one pound.Thats why the gauge number decreases when the diameter increases. SHOT SIZE It seems the history of shot size is uncertain. There are at least 24 different methods of determining shot size around the world. The method used in the USA currently is to subtract the shot size number from 17 and that number is the diameter in hundredths of an inch. Thus #4 shot would be 17-4=13 or .13" in diameter. Why 17, I cant find anyone who knows, so anybody know?
Wiki User
∙ 15y ago
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Where does shotgun gauge come from?
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
What is a 12 gauge shotgun?
A shotgun with a 12 gauge bore. Gun gauge is an old traditional measurement derived from the number of balls of the size to fit the gun that can be made from one pound of lead. A 12 gauge shotgun will have a bore of .729 inch (18.53 mm).
What is a 410 shot gun?
This is a shotgun with an internal barrel diameter (called the "bore) of approximately .410" which shoots a shell which is about .410" in diameter. It is the only shotgun shell size that uses this convention. A 12 gauge shotgun, for example, does not have a bore of "12". A 20 gauge shotgun has a smaller bore than a 12 gauge and a 10 gauge has a bigger bore than a 12. Gauge size is based on the number of lead balls of the bore diameter which are required to make a pound (16 ounces). 10 balls, 12 balls, or 20 balls.
What does gauge mean in guns?
Refers to shotgun bore size. Specifically, it refers to the number of lead balls of that bore size that it takes to make one pound. A twenty gauge takes 20 balls to the pound where a 12 gauge takes 12 balls.
What is a 12 gauge?
A shotgun with a 12 gauge bore. Gun gauge is an old traditional measurement derived from the number of balls of the size to fit the gun that can be made from one pound of lead. A 12 gauge shotgun will have a bore of .729 inch (18.53 mm).
What is the difference between a 12 guage shotgun and a 20 guage?
A 12 gauge shotgun is determined by the fact that 12 solid balls of lead will fit into the bore of the gun and thus these 12 solid balls of lead will equal a pound. Likewise, it takes 20 solid balls of lead fitting into the barrel of a 20 gauge shotgun to equal a pound. 10 solid balls of lead that equal a pound fitting in the bore of a shotgun would make that a 10 gauge, like wise a 16 gauge and a 28 gauge. There have been 8 gauge guns but an exception to all this is the 410 which is not a gauge but a caliber. The caliber of a 410 shotgun is .410 or there a bouts. Some research on your part will help you understand more if your desire but you can see that smaller balls make gauges with larger numbers and therefore, a larger number gauge like 20 will shoot shells that are smaller in diameter than those shot in a 12 gauge.
How is shotgun gauge measured?
A shotguns gauge is a measure related to the diameter of the smooth shotgun bore and the size of the shotshell designed for that bore. Gauge or diameter of the bore is determined by the diameter of 1 lead pellet times the number of pellets required to equal 1 pound. ex. 12 gauge is equal to the diameter of 1 of the 12 lead balls that equals 1 pound. ex. 20 gauge is equal to the diameter of 1 of 20 lead balls that equals 1 pound. ex. 3 gauge is equal to the diameter of 1 of the 3 lead balls that equals one pound. The larger number of gauge the smaller the bore.
What was the largest caliber shotgun made?
The largest EVER made was a 2 gauge. It holds a 2 pound metal ball, if I remember correctly. According the gauge index, a 2 gauge shotgun would hold two half pound balls since the diameter of the shotgun tube determines the gauge, the number of balls to equal a pound going down the barrel in this case would only be two to make a pound. Whereas in a 12 gauge, it takes twelve lead balls of the barrel size to make a pound. A two pound meal ball going down the tube would make for a .5 gauge.
What are shotgun gauge sizes related to in inches?
Shotgun gauges are determined by the number of lead balls of a given diameter required to make one pound of that size ball. Thus 10 balls of 10 gauge diameter are required to make one pound of such balls, or 20 balls of 20 gauge diameter are required to make one pound, and so forth. This is the traditional, and very old, system. The actual (nominal) bore diameters of the various gauges are as follows: 10 gauge = .775 inch, 12 gauge = .729 inch, 16 gauge = .662 inch, 20 gauge = .615 inch, 28 gauge = .550 inch. The .410 is named for its nominal bore size, and is not a gauge at all.
How do you convert gauge to mm?
Assuming this is a firearm question, and you mean gauge of a shotgun barrel, and not wire gauge- There is no direct conversion formula, since gauge refers to the number of round lead balls that fit the bore that would equal a pound in weight- 12 balls that fit a 12 g barrel weigh 1 pound, 16 balls that fit a 16 g weigh a pound, etc. The SMALLER the number, the larger the diameter. However, there ARE industry standard measurements for different gauges- you can look up the standard measurements, or contact me through my message board if you are looking for specific gauge. PS- a .410 shotgun is not a gauge, but an inch measurement.
What is the relationship between a shotgun's barrel diameter and the gauge of the shotgun?
In order of biggest to smallest - 8, 10, 12, 20 bore, then .410 as the smallest. The 410 is .410 inches. Do not know the mathematical relationship between gauge and barrel diameter.The relationship is INVERSE- the smaller the number, the bigger the bore. The gauge of a gun barrel is the number of lead balls that fit the barrel that weigh 1 pound. So 12 lead balls that fit a 12 g weigh one pound, 20 lead balls that fit a 20 g weigh 1 pound, etc. .410 is actually a caliber, not a gauge- if converted to gauge would be about 69 gauge.
How is a shot gun gauge determined?
It is determined by the number of lead balls of the same diameter as the barrel bore needed to make one pound. e.g. 12 lead balls of .735" diameter weigh one pound - therefore the shotgun with that bore size is called a 12 gauge.
