The Smith & Wesson SD40

by Paul Rackley, Associate Online Shooting Editor


Since the early 1990s, firearm manufacturers have been producing polymer semi-auto pistols in a variety of calibers for both law enforcement and self-defense markets. These “plastic” pistols have become highly popular over the years because of their simplicity and reliability.

Many law enforcement agencies are issuing some type of striker-fired polymer handgun because the guns are accurate, affordable and, most importantly, easy to use, which also translates well for the home-defense gun owner.

Smith & Wesson has been covering both the high and low ends of the polymer-gun price spectrum with its M&P and Sigma lines, respectively. Then, during the 2010 NRA Annual Meetings & Exhibits in Charlotte, S&W introduced a mid-range polymer pistol to meet the needs of the home and self-defense shooter.

“If you look at our polymer pistol line, we had the Sigma, which was a price-point polymer, and we had the full-featured M&P duty gun,” said Jim Unger, S&W product manager. “There was a $200 gap between the two and a huge difference in features. We wanted a gun that hit in the middle and provided the features needed for self-defense.”

Self-defense is the entire theme of the SD Series as it’s available in two effective self-defense calibers—9 mm and .40 S&W—along with multiple features popular with the self-defense crowd such as a 4-inch barrel, Trijicon front sight, white-dot rear sights, loaded chamber indicator and an accessory rail for attaching a light, laser or even a bayonet. The SD also comes with a black Melonite finish to reduce glare, which according to S&W provides a surface hardness of 68 on the Rockwell scale.

The grips are fairly slim and ergonomic with a good angle—18 degrees—for both point shooting and aimed fire with aggressive diamond-shaped checkering on the front and backstraps and rough texture on the sides. Serrations on the slide are deep and slightly angled toward the muzzle providing a good gripping surface for chambering a round. Just below the steel slide is a textured finger locator to help shooters keep their fingers off the trigger until the pistol is lined up on the target and ready to fire.

Both the SD9 and SD40 have an unloaded weight of 22.7 ounces and come with two high-capacity magazines—the 9 mm version holds 16+1 rounds while the 40 S&W contains 14+1 rounds—or two California-legal 10+1 round mags. Both versions come with S&W’s lifetime service policy.

While the night sight, checkering and rail are all good for both carry and home-defense guns, according to Unger, the most interesting feature is the Self Defense Trigger. The SDT was designed to provide a smooth, consistent trigger pull every time, which enhances confidence by improving accuracy for the user.

“The self-defense trigger is light enough to be accurate, but not too light,” said Unger. “The front sight is nice, but having a trigger designed for self-defense makes all the difference in the world to people fighting for their life.”

The SD series contains no manual safety. Instead, its only visible safety is on the bottom half of the trigger, which must be depressed before the striker can be engaged. A sear prevents the striker from hitting the primer unless the trigger is depressed. The striker is brought fully to the rear with each trigger pull before releasing and striking the primer. Because of the safety, the trigger has a slight amount of rearward play before engaging the striker, but once engaged, the trigger pull becomes very even, breaking at just over 8 pounds on the test model.

In accuracy testing, the SD40 performed OK. Since the gun is designed for self-defense, accuracy was checked using Cor Bon, Federal, Hornady and Winchester self-defense rounds applying the American Rifleman standard of five groups of five shots from a bench at 25 yards. In addition, I shot one 10-round group at 25 yards with each load. All shot well with the Federal 135-grain Hydro-Shok performing best by averaging just under 4 inches in the five 5-shot groups. The 10-shot groups obviously opened up, but easily stayed within the limits of a self-defense grouping.

In addition to accuracy testing, I decided a self-defense handgun needed to run through some self-defense drills to learn its true potential. To do so, I dimmed the range lights to perform low-light drills both with and without an attached light.

With a SureFire X300 Weapon Light, it was easy to see both the target and the sights, and the added weight on the front helped with muzzle rise providing for faster follow-up shots. Of course, since the SD40 comes with a Trijicon front sight, the real test was conducted without a light. In even the faintest light or pure darkness, the tritium front sight was clearly visible. At the same time, the white-dot rear sights stood out fairly well if there was some light, which provided a good sight picture for firing. However, as the room became darker, the rear sights were practically useless. Since I wouldn’t fire at an unknown target anyway, this wasn’t very concerning.

Throughout it all, the SD40 never malfunctioned with more than 300 rounds fired in a variety of both speed and action drills. This bodes well, as the most important requirement of a self-defense handgun is reliability.

Overall, the SD40 performed well. Reliability, feel and function were terrific, while accuracy was just acceptable. I didn’t get great groups with and no matter how I shot—bench, standing or drills—or the type of ammunition used, the SD40 shot low. At 25 yards, the difference between aim and shot was about 3 to 4 inches. As I decreased the range, the difference obviously lessened, but regardless of range, the SD40 shot low enough in my hands to be apparent.

The SD has a solid feel to it with a good grip angle. It’s easy to use and has many features of the M&P along with a much better trigger than the Sigma. However, S&W claims the SD Series is not a combination of the two.

“There is not a lot of commonality between the two in reality,” said Unger. “When describing the polymer guns to dealers, we lay out the features of all three and compare them to one another. This was a fresh sheet of paper.”

Manufacturer: Smith & Wesson, www.smithandwesson.com
Caliber: 9 mm and .40 S&W (tested)
Action: striker-fired semi-auto pistol
Frame: polymer lower, steel upper
Finish: Black Melonite
Barrel: 4”
Rifling: 1:18.75” right-hand twist
Magazine: two high-capacity (16+1 9 mm, 14+1 .40 S&W) or two 10+1
Sights: Trijicon front, white-dot rear
Trigger Pull: 8 lbs., 2 oz.
Overall Length: 7.1”
Width: 1.29”
Weight: 22.79 oz.
Accessories: hardcase, two magazines, instruction manual and safety lock
Suggested Retail Price: $530

 

Defensive Handgun Maintenance Tips

by Jim Wilson


There is no doubt that regular care and maintenance will improve the reliability and longevity of any firearm. This is especially true when it comes to the defensive handgun that you may have to bet your life on. Now, at the outset, I'm going to assume that you know how to clean a handgun. What I'm about to share are some little maintenance tips that I've learned through the years of carrying a handgun.

To begin, let's look at one aspect of the cleaning challenge, namely the use of lead bullets. Years ago, somebody decided that all he or she needed to do to get lead out of the barrel was to fire some jacketed rounds downrange and those jacketed bullets would scrub the lead right out of the bore. After all, following this little technique, the bore sure looked a lot cleaner. Unfortunately, such is not the case. All the jacketed bullets do is flatten the lead into the rifling creating a situation where moisture can get under the lead and allow corrosion and rust to start. Sorry folks, you've just got to work with that wire brush and patches until you get the lead out. There's really no other way.

One of the next biggest issues with defensive handguns is lubrication, whether too much or too little. Too little lubrication causes undue friction on the various moving parts of the handgun and can lead to reliability issues. Too much lubrication attracts dirt and powder particles, which can also lead to malfunctions. A light lubrication, each time the handgun is cleaned, will keep it running and functioning reliably.

In selecting the proper lubricant for your handgun, it is wise to stay away from heavy oils and to avoid the use of WD-40. WD-40 is a great product and quite useful, but it is not designed to be used on firearms. In many cases it can leave a solid residue that can lead to malfunctions. It is also a penetrating oil, which means it is just about guaranteed to kill any primers that it comes in contact with. The products to use are any of the lightweight lubricating oils that are especially designed for firearms.
 
A light application of oil should be put on the barrel locking lugs, or the area where the barrel interacts with the slide and frame. Another drop of oil should be applied near the muzzle of the barrel where it interacts with a barrel bushing, or the front of the slide. Also in need of lubrication are the pistol's slide rails. Occasionally, you will want to put a drop of oil on the sear and trigger mechanism.
 
With autoloading pistols it is also important to give consideration to replacing the recoil spring. This spring can become weakened under continued use and, in this weakened state, allow the gun to batter itself unnecessarily. Replacing the pistol's recoil spring about every 2,000 rounds is a good habit to get into.  After all, what is the cost of a recoil spring as compared to one's life?
 
A large majority of the auto pistol's malfunctions can generally be blamed on faulty magazines. They can become damaged in a number of ways and for a number of reasons. What is amazing is that so many shooters will just drop faulty magazines back in their shooting boxes and expect that, somehow, they will work okay during their next trip to the range. The proper place for a faulty magazine is the garbage can. 
 
With revolvers, it is important to lubricate the area where the cylinder yoke joins the frame. Occasionally, remove the slide plate and lubricate the trigger, sear and trigger return areas. Depending on the local climate, lubricating the internal parts of a revolver should only be done about twice a year.
 
During each cleaning session with your revolver it is important to check the ejector rod and make sure that it is screwed in tightly. These have a tendency to loosen up and, when they get loose enough, they will tie up the gun, making it virtually impossible to swing the cylinder out. If it becomes evident that an ejector rod is continually getting loose, a drop of Loctite on the threads will solve the problem.
 
During the revolver cleaning session it is also important to elevate the cylinder's extractor star and clean out any unburned powder and residue that may have become trapped there. Failing to do this may cause the cylinder to become difficult to close if enough residue builds up in this area.

If you are uncertain about how to properly lubricate that new pistol or revolver, you will find that most companies now provide those instructions in the owner's manuals. Yes, I know guys, but read the instructions anyway. No one has to know that you actually read the instructions.

At the end of an evening, I generally lay my defensive handgun on the nightstand by my bed. For years, I've made it a practice to keep an oily gun rag in the same place. It just takes a minute to wipe the handgun down, getting fingerprints and dirt off of the exterior.

Regular cleaning and lubrication, along with the replacement of weak and worn parts, will keep a defensive handgun in good shape for a lifetime. And that's not a bad idea at all, considering that you may well have to bet your life on it.

 

October 08, 2013

At approximately 11 p.m., a resident responded to the sound of an intruder entering his home. A 21-year-old man had used a shovel to break through a back window and enter the residence. The resident retrieved a firearm and shot down a hallway toward the intruder. The intruder, who already had a long list of previous offenses, was struck and later pronounced dead. The homeowner was reportedly not injured during the home invasion. (The Post & Courier, Orangeburg, S.C., 5/27/13)

Two armed men entered a Houston auto shop and car dealership demanding money. The owner, Mack Agaybi, saw the suspects on his security monitor in his office before they entered, and left the office with his gun to confront them. A brief gunfight followed, and the suspects fled the scene. Mack donated a $1,000 reward to help locate the suspects. (Gunssavelives.net, Houston, Texas, 10/8/13)

From The Armed Citizen Archives
October 1983: A would-be rapist awoke Claudine Hale in her Baltimore apartment, grabbed her by the throat and threatened to harm the children sleeping in the same room. Hale struggled with the assailant, then managed to reach a handgun, which she used to halt the attack. He fled after being shot, and a suspect was found dead nearby. Baltimore authorities declined to press charges against the woman. (The Evening Sun, Baltimore, Md.)

 
 

Past Articles

Mix Six: The S&W Governor
by Wiley Clapp

Smith & Wesson calls it the "Mix-Six-Shooter" because you can mix and match loads to suit your needs. Read More »

The Smith & Wesson Model 632 .327 Fed. Mag. Revolver
by NRA Staff

The S&W Model 632 is a good all-around gun that offers ammunition versatility and several features that allow for easy handling by both men and women. Read More »

S&W's New Bodyguards
by Wiley Clapp

S&W addresses America's interest in compact and concealable handguns. Read More »

Smith & Wesson's M&P Goes Long
by Michael Humphries

Smith & Wesson's M&P15 series combines old-fashioned quality with cutting-edge design, and the offerings continue to expand. Read More »

The Smith & Wesson M&P Shield
by Joseph L. Kurtenbach, AR Assistant Editor

Unveiled at the NRA Annual Meetings & Exhibits in St. Louis, Mo., Smith & Wesson's newest product, the M&P Shield, is sure to turn heads. Read More »

The Smith & Wesson SD40
by by Paul Rackley, Associate Online Shooting Editor

S&W performs polymer magic with its SD series.
Read More »

Past Tips

Carrying in the Car
by Jim Wilson

Effectively carrying your firearm in a vehicle can prove to be a tricky task—here are some tips to help you prepare. Read More »

Concealed Carry: The Strong Side
by Paul Rackley, Associate Online Shooting Editor

Strong-side concealed carry keeps a gun close at hand. Read More »

Self-Defense Pistol 101
by Richard Mann

Using a handgun to defend your life requires more than just a familiarity with firearms. Read More »

Defensive Handgun Maintenance Tips
by Jim Wilson

Regular care and maintenance keeps your carry gun ready for anything. Read More »

 
 

1852

The year Smith & Wesson was founded.

80 Million

Estimated number of gun owners in the United States.

45 Million

Estimated number of handgun owners in the United States.

45%

Estimated number of American Households that have firearms.