2006-09-06 05:06:15 · 10 answers · asked by Nema R 1 in Science & Mathematics ➔ Engineering
It is a measure of the size of the hole in the barrel (or, equivalently, the size of the ammunition used), similar to caliber.
This link has a chart with the conversions:
http://www.themeter.net/calibro_e.htm
Hope this helps!
2006-09-06 05:11:48 · answer #1 · answered by Shofix 4 · 0⤊ 0⤋
Not sure of the question but the "caliber" of a gun (as in .45 or .22) is telling you the diameter of the bore in inches. So, a .22 caliber rifle has a barrel with an inner diameter of .22 inches. It's a lot more confusing with a shotgun. They are measured in gauges, ie. 12 gauge, 20 gauge, etc. (a .410 shotgun is an exception-it's measured as a caliber) Shotgun gauge measurement has to do with the number of lead balls it takes to equal 1 lb., if the balls are the size of the bore. So, if a lead ball is 1/20 of a pound, then it would be the size of the bore of a 20 gauge shotgun.
2006-09-06 05:24:58 · answer #2 · answered by FortheFuture 2 · 0⤊ 0⤋
It's the diameter of the barrel. For instance, a 357 Magnum has a barrel diameter of 0.357 inches.
For proper flight, the bullet needs to be a little larger than the bore to engage the rifling in the barrel.
Shotguns are classified by gauge instead of bore.
2006-09-06 05:13:34 · answer #3 · answered by Professor 3 · 0⤊ 0⤋
The caliber. In firearms, the caliber is the diameter of the inside of the barrel. In a rifled barrel the distance is measured between the lands.
2006-09-06 05:14:26 · answer #4 · answered by Andy S 6 · 0⤊ 0⤋
The diameter on the inside of the gun barrell.
2006-09-06 05:11:54 · answer #5 · answered by nursingsec8066 2 · 0⤊ 0⤋
Inside diameter of the barrel...
2006-09-06 05:11:47 · answer #6 · answered by Anonymous · 0⤊ 0⤋
I believe it's the diamenter of the barrel.
2006-09-06 05:12:54 · answer #7 · answered by thatgirl 6 · 0⤊ 0⤋
It is the diameter of the barrel...
2006-09-08 03:50:20 · answer #8 · answered by Ashish Samadhia 3 · 0⤊ 0⤋
the calibre of the bullet i think. size of it.
2006-09-06 05:08:00 · answer #9 · answered by Anonymous · 0⤊ 0⤋
they can be different sizes
2006-09-06 05:07:51 · answer #10 · answered by Ha Ha Charade You Are................... 4 · 0⤊ 0⤋