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The outside dimension of a barrel is simply the diameter.

The traditional inside measurement of a rifled barrel is caliber and the traditional inside measurement of a smoothbore (shotgun) barrel is gauge.

Strictly speaking, smoothbore gauges are not diameters. Gauge number is the number of round balls fitting the bore that can be made from a pound of lead.

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Q: What is the diameter of a gun barrel known as?
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Related questions

What is the diameter of a gun barrel called?

The diameter


What mean by bore of a gun?

The bore of a gun relates to the diameter of the hole in the barrel - and in turn the diameter of the bullet the gun can fire.


How big is a caliber?

Calibre refers to the diameter of the barrel of a gun. Also known as the bore. It is referred to in imperial measure or metric depending on the manufacturer


What can you make a bb gun barrel out oF?

Any tube that is .175 in diameter.


Where is the bore of a gun?

The bore is the inside diameter of the barrel. Simply put, it's the hole down the middle of the barrel.


Does bullet size affect the gun barrel?

Yes, a bullet must be the same diameter as the barrel (unless it is a shotgun).


How do you Determine the gun bore?

By measuring the inner diameter of the barrel across the lands.


Is there a word beginning with C meaning gun bore?

The word "caliber" refers to the diameter of the internal bore of a gun or firearm barrel.


Front opening of a gun barrel?

Known as the muzzle


What is the diameter of a gun barell?

Depends on the caliber, type of barrel, whether it is on a handgun or rifle, etc..


What are calibers in a gun?

With rifles and pistols, it is the diameter of the inside of the barrel in inches. So a .45 caliber pistol has a barrel 0.45 inches in diameter. In can also be expressed in metric terms- caliber 9mm means a barrel that is 9mm in diameter. With cannon, such as those on a Naval vessel, it is the relation of the barrel length to the internal barrel diameter- so a 3 inch 50 caliber cannon fires a shell 3 inches wide, from a barrel 150 inches long (3x50).


What does the diameter of The bore in a gun mean?

The bore is the inside of the barrel- that is, the hole that the bullet is fired through. The diameter of the bore is measuring how wide the bore is from one side to another.