There is no such thing. The Cowboy Ranger revolver is not made by Colt. The reason it has Colt stamped on the barrel is because you can use Colt ammunition. The Cowboy Ranger revolver is a pre WW1 revolver that was distributed in the US but also brought over from the soldiers as they returned from the war. If you can find any information on the manufacturing date and how to identify it please let me know
Don't use 32 Long Colt ammo for this revolver!!
Actually, the cartridges are .45 ACP (automatic Colt Pistol) and .45 Colt (the cowboy era revolver cartridge. There is not really a Colt 45 Long. Can a revolver shoot both? Some can- they are chambered for the Colt .45 -but to shoot .45 ACP they need a "half moon clip"- a strip of metal that holds 3 of the shorter .45 ACP cartridges. 2 of those fill a 6 shot revolver. The PISTOL (not revolver) that shoots the .45 ACP cannot shoot the .45 Colt- no groove for the extractor to pull a fired cartridge out of the chamber, and it is too long.
Proofhouse.com has Colt serial number information you can use.
38 caliber revolver ammo
It was a .38 caliber Colt Cobra revolver.
1851 Colt Navy revolver in .36 caliber
any 32 cal. revolver ammo.
The Colt model of 1917 revolver just like the Smith and Wesson model of 1917 revolver was made from 1917 until January of 1919,for use in World War I. Another answer: 1918 specifically
Must be inspected by a gunsmith.
Mexican-American War
'The Hand of God' - A reproduction Colt Peacemaker with a 4 3/4" barrel made by U.S. Fire Arms in caliber .45 Long Colt was the revolver used by Russell Crowe in the movie.