Beginning of the barrel to end of barrel.
A top break revolver
It had two different caliber barrels on the same frame.
One of many 22 single action revolvers made by the company
In the early 1860's, when oil production began, there was no standard container for oil, so oil and petroleum products were stored and transported in barrels of all different shapes and sizes (beer barrels, fish barrels, molasses barrels, turpentine barrels, etc.). By the early 1870's, the 42-gallon barrel had been adopted as the standard for oil trade. This was 2 gallons per barrel more than the 40-gallon standard used by many other industries at the time. The extra 2 gallons was to allow for evaporation and leaking during tranport (most barrels were made of wood). Standard Oil began manufacturing 42 gallon barrels that were blue to be used for transporting petroleum. The use of a blue barrel, abbreviated "bbl," guaranteed a buyer that this was a 42-gallon barrel.found this on seekingalpha.com
I have a HI-STANDARD DOUBLE NINE .22 CAL REVOLVER, Model # W-101, Serial # 1091897. When was this Revolver Manufactured?
The Webley Revolver was the standard issue service pistol for men fighting in the United Kingdom's armed forces and was first established in 1887. It was standard until 1963.
250 barrels
Barrels have lands and grooves, not ammunition.
Gun Parts Corporation (AKA Numrich) is the source for replacement parts for most obsolete firearms http://www.e-gunparts.com/productschem.asp?chrMasterModel=1980z66 they list all the standard Model 66 barrel lengths
50-125 USD
50-200