cal�i�ber (kl-br)
n.
1. Abbr. cal.
a. The diameter of the inside of a round cylinder, such as a tube.
b. The diameter of the bore of a firearm, usually shown in hundredths or thousandths of an inch and expressed in writing or print in terms of a decimal fraction: .45 caliber.
c. The diameter of a large projectile, such as an artillery shell, measured in millimeters or in inches.
Yes, Fish, You and Wind Drift are correct. However in my 62 yrs I've never heard anyone ask, "What chambering is your rifle chambered for?" OR even "What cartridge is your rifle chambered in/for?"
I'm also PRETTY SURE I've never read it in any book or magazine.
I'd prabably be more accurate to say, I DON'T REMEMBER reading it anywhere, EVEN HERE.
IMHO, "what caliber is your rifle?" has become common usage.
When I was in school THRU high school the teachers fussed and said, "Ain't is NOT a word!!!" Well today Ain't is in the dictionary.
Caliber certainly designates the diameter of a bore or bullet.
We have applied it to the cartridge or chamber of guns.
Denotation---Connotation.
Jerry
