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What is nominal bore size 12ga shotgun?
The nominal bore size of a 12-gauge shotgun refers to the diameter of the shotgun's barrel, which is approximately 0.729 inches (18.5 mm). The "gauge" system measures the number of lead balls of the bore diameter that can fit into a pound; thus, a 12-gauge shotgun is designed to accommodate 12 lead balls of that diameter. This measurement influences the shotgun's performance, including its shot pattern and recoil.
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.
How big is a 12 gague?
A 12-gauge shotgun refers to the diameter of the shotgun bore, with the gauge system indicating the number of lead balls of the bore's diameter that would weigh one pound. In a 12-gauge, it takes 12 lead balls of the same diameter to equal one pound. The bore diameter of a 12-gauge shotgun is approximately 0.729 inches (18.5 mm). This gauge is one of the most popular sizes for shotguns, commonly used for hunting and sport shooting.
What is the a measure related to the diameter of the bore and the size of the shot shell designed for the bore?
The measure related to the diameter of the bore and the size of the shotgun shell is known as "gauge." The gauge is determined by the number of lead balls of the bore diameter that equal one pound; for example, a 12-gauge shotgun has a bore diameter that allows for 12 lead balls of that diameter to weigh one pound. The smaller the gauge number, the larger the bore size. This system is commonly used to classify shotguns and their corresponding ammunition.
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
How do you tell the gauge of a shot gun?
The gauge of a shotgun is determined by the diameter of its bore, specifically the number of lead balls of a specific diameter that would weigh one pound. For example, a 12-gauge shotgun means that 12 lead balls with a diameter equal to the shotgun's bore would weigh one pound. To find the gauge, you can also measure the bore's diameter in inches and then refer to a gauge chart, as the number of balls that fit into a pound decreases with increasing gauge number (i.e., 12-gauge is larger than 20-gauge).
Why are shotguns called 12 bores or 10 bores or 20 bores etc?
Shotguns are named according to the number of bore-diameter-sized lead balls that can be made from one pound of lead. For example, a "12-bore" shotgun means that 12 lead balls of bore diameter can be made from one pound of lead. The larger the number, the smaller the bore diameter.
What is rifle bore?
The bore is the inside of the barrel of the gun. Bore dimension for most rifles is caliber, which is the bore diameter in fractions of an inch or in millimeters. Some older big game rifles had designations such as "12 bore", which is bore diameter the size of a shotgun barrel of the same gauge. Gauge is the number of round balls fitting the bore that can be made from a pound of lead.
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 does 20-gauge mean?
A 20-gauge refers to the size of a shotgun, indicating the diameter of the shotgun bore. The gauge number is inversely related to the size of the bore; specifically, a 20-gauge shotgun has a bore diameter of .615 inches and is smaller than larger gauges like 12-gauge. The 20-gauge is popular for its balance of manageable recoil and effective performance, making it suitable for various hunting and shooting activities.
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.
What does 12 gauge stand for in a 12 gauge shotgun?
The term 12 gauge is used to describe the caliber(bore diameter)of your shotgun.A 12 gauge barrel is 72 caliber,but the word gauge is used so people can determine you are talking about a shotgun,instead of a rifle.
