The caliber
The diameter of the projectile.
The bore refers to the hole in the gun barrel thru which the projectile (bullet) passes. Some guns have a smooth bore, but many modern guns, both pistols and especially rifles, have a rifled bore, that is, the bore has a helical (spiral) groove that causes the projectile to spin as it flies thru the air. The diameter of the gun's bore determines the size of the bullet or shell (e.g. .22, .45, 9mm, etc.)
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.
In rifles and handguns the diameter of the bore usually indicates?
Bore slugging is done by taking a lead cylinder(slightly larger in diameter than bore) and pounding it through the bore. Once it's through, you mic it with a caliper. This gives the bore's exact diameter.
I am going to need to bore a larger diameter hole.
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.
If you include cannon in guns, the largest was the Tsar Howitzer, that had a bore diameter of 35 inches which means it is a 35 caliber cannon. (A .22 rifle has a bore diameter of .22 inches not 22 inches.) If you mean shoulder firearms, then the 4 guage shotgun may be the largest- although there were very large bore Paradox guns. In rifles, the German 20 mm antitank rifle of WW I (about .80 caliber) For sporting rifles, possibly the.700 Nitro Express.
diameter of the pipe
The bore of a cylinder describes is measurement, in millimeters or inches, of the inside diameter of the cylinder. The diameter is the width across.
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.
Caliber "Caliber" is a word for the diameter of the bullet or the bore of the gun.