Introduction
Firearms have been used since the settlement of North America for many different reasons. They were used by colonials to hunt game animals such as deer and turkey. They were also used as protection, from both wild animals and enemies. Today, guns are used for a lot of the same reasons. They are used for hunting, for protection, as well as for sport. The focus of this presentation will be in semi-automatic handguns, and the physics behind the recoil, the automatic reloading, and the cartridge itself. There are a few different types of handguns, with many different calibers shot through them. Some common calibers are .22LR, 9mm, .40 S&W(Smith j and Wesson), and .45 ACP(Automatic Colt Pistol). Semi-automatic handguns normally have a removable magazine that feeds the ammunition into the breech. The recoil from firing the bullet is then used to move the slide and replace the bullet with a new one from the magazine. In this presentation the focus will be on a Colt 1911, produced in 1917, chambered in .45 ACP. |
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