An iconic American cartridge, the .45 ACP was popularized in John Browning’s classic Colt Model 1911 pistol. Today it remains as popular as ever – with military, police and civilian shooters continuing to make this cartridge their choice for personal protection.
Designed by an American, made in America, and created for the United States Armed Forces – nothing encompasses the American spirit of ammunition like the .45 Auto caliber and the gun it was made for. Known as the .45 ACP, this cartridge is the all-American bullet. And over 100 years after its debut, it’s still used by both law enforcement and civilians, and remains a favorite across the U.S.
What is .45 ACP Ammo?
The .45 Automatic Colt Pistol (ACP), also known as the .45 Auto, is a caliber of ammunition designed by John Moses Browning in 1905. The standard ammo design holds a 230 grain (gr) lead bullet that travels at an impressive 830 feet per second (fps).
.45 Auto bullets measure 11.43 x 23mm, with a bullet diameter of .451 inch. Its casing features a slight taper – from the casing’s rim to its mouth, there’s a .003 inch difference.
Used in the military, by law enforcement, by civilians for personal protection, and as a first-class match cartridge, the .45 ACP gives its shooter an ammunition that’s accurate and has excellent stopping power. While it can take some practice to become effective with these rounds, it often becomes a favorite to shoot.
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