Around 1906-1907, John Moses Browning, one of America’s most prolific gun designers, created a pistol with superior stopping power in a semi-automatic function. At that time, the .45 caliber (bullet diameter .451″) cartridge had been available for many years used in a revolver, but the advent of the “auto-pistol” revolutionized the craft of the pistolero. The .45 ACP cartridge was developed and together with the auto-pistol they were adopted by the U.S. Military in 1911, hence the name — 1911 pistol. The round propels a 230 grain projectile approximately 850 feet per second.
Recently, I found a very cool site filled with detailed graphics. I am not sure if students in China can open this link. It would be a pity if they are blocked from access, because the site offers some other cool videos and graphics.
This particular animated graphic uses the design of the 1911 pistol to demonstrate how a semi-automatic pistol operates.
If you are interested in the topic of guns you may read a previous article about the many reasons why Americans have guns.