ACP is an acronym for ammunition calibers commonly used in pistols. The three most popular ACP calibers are .45 ACP, 9mm Luger, and .40 Smith & Wesson. Each one has unique benefits and drawbacks that make it better or worse for certain situations.
.45 ACP is one of the original pistol cartridges, dating back to the early 1900s. It was designed to be used in the new semi-automatic pistols that were becoming popular at the time. A .45 ACP bullet is large and heavy, so it has good stopping power but unfortunately also has a lot of recoils. This makes it difficult to shoot accurately for some people, especially if they’re not familiar with handguns.
9mm Luger ammo is the most popular caliber in the world. It’s used in a variety of different pistols, including the Glock 17, SIG Sauer P226, and Beretta 92FS. 9mm ammo has medium recoil and is relatively easy to shoot accurately. It also has a good amount of stopping power.