DA/SA Transition

by
posted on March 26, 2013
** 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 (3)

Back in the 70s, there was a great deal of experience behind police trainers and the procedures used to make competent handgunners out of rookie cops. For the most part instructors were teaching the use of wheelguns, one of the more forgiving handguns ever made. But the move to automatic pistols came along in that period and things changed. Police adopted autos, quickly deposing the DA/SA revolver. SigSauer/Beretta/S&W and a few other autos were the first guns of choice. Most of the guns of that day were cocked for the first shot by trigger pressure, with subsequent shots cocking when the slide recoiled and returned to battery. A first-class trainer, whose experience spans those early years to date, recently commented to me that it was actually easier to teach DA/SA autos when everyone was coming off revolver skills.

There is a problem inherent in that first-shot in double action to the second shot in single action, and it’s more than just the different feel of the two trigger actions. The thick butt sections of most autos makes for an unwieldy grip at best. People with all but the biggest hands may have control of the gun, but they find themselves shifting the gun in their grasp just a little when the go from DA to SA. That leads to all kinds of typical trigger control problems—jerking, heeling, flinching, etc. On-target groups spread out to poncho size. If there is any way to resolve this dilemma for the struggling handgunner, it has to be through a complete understanding of trigger reset.

Reset is that point in the forward motion of the trigger where the trigger/sear/hammer linkage allows the shooter to stop and reverse the motion to fire again. You can actually feel—and sometimes hear—a tiny click when this happens. It happens in DA, SA or even DAO trigger systems. Basically, learning to reset the trigger means that you are reducing the distance the trigger travels in firing multiple shots. It has significant advantages in any form of shooting, but we’ll leave that for another time.

Latest

Freedom Ordnance FM9D 1
Freedom Ordnance FM9D 1

Review: Freedom Ordnance FM-9D

New small arms with groundbreaking designs are rare in an industry where new products tend to be evolutionary rather than revolutionary. Fortunately, Freedom Ordnance marches to the beat of a different drum and invested its creative energy into developing the unique, innovative FM-9D. 

Number of Retail FFLs Dwindling

The number of retail outlets with an FFL Type 01 license to sell firearms has declined by more than 13 percent in just the last five years.

Ammunition Depot and NRA Partner to Expand Support for Second Amendment Litigation

The NRA has invested more than $3 million in California Second Amendment litigation since 2021 and has provided support for Rhode v. Bonta; Ammunition Depot is launching a checkout donation option to help fund ongoing legal efforts.

The Murdoch & Co. EM85: An SA80 for America

Most modern service rifles are sold in the U.S. in semi-automatic form. There is one glaring exception, and that is the British L85. Murdoch & Co., an American company, is changing that reality with its EM85.

I Have This Old Gun: The British Brown Bess

One of the most iconic military longarms ever made, the British Land Pattern musket, more commonly known as the "Brown Bess," equipped British infantrymen across the world for more than a century.

Rifleman Interview: CCI Rimfire Ammunition

CCI’s rimfire offerings were part of the Plinkapalooza event in May.

Interests



Get the best of American Rifleman delivered to your inbox.