A rifle bore is measured by determining its diameter, typically expressed in inches or millimeters. The measurement is taken from land to land, which refers to the raised portions of the rifling inside the barrel, rather than from groove to groove. For example, a .30 caliber rifle has a bore diameter of approximately 0.308 inches. This measurement is crucial for ensuring that the correct ammunition is used for optimal performance and safety.
Because that's what the bore measured out to.
The diameter of a rifle's bore is measured in either inches or millimeters, depending on the measurement system used. In the United States, it is typically expressed in inches (for example, .223 caliber), while many other countries use millimeters (such as 7.62 mm). This measurement indicates the internal diameter of the rifle's barrel and is crucial for determining the appropriate ammunition that can be used.
bore
Bore is the inside diameter of the barrel. depending on the nation, it may be measured from the bottom on one groove to the bottom of the opposite groove, or from the top of one land to the top of the opposite land (raised part of the rifling). Measurements can be to one thousandth of an inch. Thus a rifle with a .308 bore is .308 thousandths of an inch wide inside the barrel.
A musket is smooth bored, like a shotgun's bore. A rifle has rifling inside the bore (grooves).
The bore is rifled so as to put a spin on the bullet. This spinning gives a greater accuracy to the bullet, especially over that of a smooth bore.
Almost any Combination BB & Pellet rifle is smooth bore. BB rifles usually are Smoothe bore. The Crosman model 760 is such a rifle and can be purchased at most sportingood stores. Look at the packaging and it will say Smooth bore. Smooth bore barrels are less accurate than rifled bore barrels. Cabelas, Basspro, Big5 and Sports Authority usually carry them.
No
Caliber
Rifled, unless you have one marked "shot only"
The bore diameter of a 250-3000 savage is .257
For a rifle it would be the 2 Bore.