Semi-auto or Auto

by
posted on January 11, 2012
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
wiley-clapp.jpg

A reader responded to a blog with his concerns over proper use of the terms “automatic” and “semi-automatic.” In terms of describing the type of action used in many magazine-fed firearms, automatic means continuous fire as long as the trigger is depressed and ammo is available in the gun. Semi-automatic means one shot for each trigger press and reset.

However, early literature uses automatic as describing a gun that not only fires when you press the trigger, but also reloads its own chamber. It came into common parlance in that sense around the time when we needed to differentiate between handguns with cylinders and those with magazines.

I see no reason why we shouldn't describe the Model 1911 as an automatic pistol. After all, it is chambered for the .45 ACP (Automatic Colt Pistol) cartridge, not the .45 SACP (Semi-Automatic Colt Pistol).

Latest

Kimber 1911 Ds Warrior Gotw 1
Kimber 1911 Ds Warrior Gotw 1

Gun of the Week: Kimber 1911 DS Warrior LW

In 2026, Kimber developed its 1911 DS Warrior, an American-made, double-stack design that is intended to be an affordable entry point into Kimber's double-stack handgun line.

The Armed Citizen® April 24, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Spin Difference: The Impact of Barrel Twist Rates on Terminal Performance

When most shooters think of rifling-twist rates, they mostly think of rifles with their high BC projectiles, but the rpm of a bullet also plays a part in terminal performance.

Beretta's 1301 Tactical vs. A300 Ultima Patrol Shotguns: Which Should You Choose?

Ever since Beretta launched the A300 Ultima Patrol shotgun in 2024 as a less-pricey alternative to the 1301 Tactical, shotgunners have debated whether the 1301 is worth the extra cost. Let's examine them both.

ZEV Technologies Escaping Washington State’s Hostile Political Climate

ZEV Technologies announced it is moving its headquarters and manufacturing operations out of Washington state to Utah’s Second Amendment-friendly business climate.

U.S. v. Hemani Arguments

On March 2, the U.S. Supreme Court heard oral arguments in U.S. v. Hemani. The case involves a defendant who is fighting a federal indictment for possessing a firearm while being a marijuana user.

Interests



Get the best of American Rifleman delivered to your inbox.