It will be marked on the barrel
Automatic Colt Pistol The Model 1911 pistol was developed for the Army. Most bullets (cartridges) had a large base for use in the cylinder of a revolver. The Colt pistol was automatic and used a clip so the cartridge did not have a base that was wider than the bullet. This bullet was specially designed for this gun. It became known as the .45 ACP so it would not be confused with other bullets.
7.62x39
5w30
Have it examined by a good gunsmith. This rifle use a .22 caliber bullet, long rifle.
The Colt Army .38 Special with serial number 446747 was manufactured in 1901. This revolver is part of the Colt Army Model series, which was produced for military and police use. If you have more specific inquiries about this model or its features, feel free to ask!
Needs to be checked out and verified by a gunsmith.
Depends. Which army?
In the movie the Walker Colt would be correct but in the book he actually carries the Colt Dragoon.
if you are talking about the airsoft gun, you can use any type of bb/bullet. The best and fastest bullet are 0.20 gram bbs.
.45 Long Colt.
The short answer is "no!". The cartridge may fire, but the case will split and the bullet will go somewhere downrange. Not pretty.
Any maker who makes a 41 Magnum <><><> Or the MUCH older Colt .41 Long Double Action- an obsolete cartridge.