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40 S&W

The 40 S&W (aka ".40 cal") was developed after the FBI deemed the 10mm’s recoil to be a little too snappy for some of its … let’s say “more delicate” agents. This cartridge is especially popular for self-defense (See our top defensive ammo picks for 40 S&W here). 40 SW Bullet weights ranging from 105 to 200 grains are available, although many agree that 165 or 180 grains is optimal for personal protection. We work to keep bulk and defensive options ready for sale. You'll see our in-stock options below.
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1 - 20 of 67

  1. 1000rds - 40 S&W MAGTECH 180gr. FMJ Ammo 1000rds - 40 S&W MAGTECH 180gr. FMJ Ammo

    $354.95

    $314.95

    $0.31/ppr

    ☆☆☆☆☆ 3 Reviews

    15 In Stock

    ☆☆☆☆☆ 3 Reviews

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    392     Casing Type
    Brass     Muzzle Velocity
    990     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  2. 1000rds - 40 S&W Blazer Brass 180 Grain FMJ Ammo 1000rds - 40 S&W Blazer Brass 180 Grain FMJ Ammo Video

    $354.95

    $324.95

    $0.32/ppr

    13 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Casing Type
    Brass     Muzzle Velocity
    985     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  3. 1000rds - 40 S&W Speer Lawman 180gr. TMJ Ammo 1000rds - 40 S&W Speer Lawman 180gr. TMJ Ammo

    $344.95

    $324.95

    $0.32/ppr

    ☆☆☆☆☆ 1 Review

    16 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Total Metal Jacket (TMJ)     Muzzle Energy
    400     Casing Type
    Brass     Muzzle Velocity
    1000     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  4. 1000rds - 40 S&W Sellier & Bellot 180gr. FMJ Ammo 1000rds - 40 S&W Sellier & Bellot 180gr. FMJ Ammo Video
    $334.95
    $0.33/ppr

    ☆☆☆☆☆ 5 Reviews

    13 In Stock

    ☆☆☆☆☆ 5 Reviews

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    375     Casing Type
    Brass     Muzzle Velocity
    968     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  5. 50rds - 40 S&W CCI Blazer 180gr. TMJ Clean-Fire Ammo 50rds - 40 S&W CCI Blazer 180gr. TMJ Clean-Fire Ammo
    $16.95
    $0.34/ppr

    53 In Stock

    Bullet type
    Total Metal Jacket (TMJ)     Muzzle Energy
    400     Casing Type
    Aluminum     Muzzle Velocity
    1000     Primer Type
    Boxer     Bullet Weight
    180 Grain
  6. 1000rds - 40 S&W PMC 180gr. FMJ Ammo 1000rds - 40 S&W PMC 180gr. FMJ Ammo
    $349.95
    $0.35/ppr

    ☆☆☆☆☆ 1 Review

    15 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    388     Casing Type
    Brass     Muzzle Velocity
    985     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  7. 1000rds - 40 S&W Fiocchi 170gr. FMJ Ammo 1000rds - 40 S&W Fiocchi 170gr. FMJ Ammo
    $359.95
    $0.36/ppr

    ☆☆☆☆☆ 2 Reviews

    2 In Stock

    ☆☆☆☆☆ 2 Reviews

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    381     Casing Type
    Brass     Muzzle Velocity
    1020     Primer Type
    Boxer     Bullet Weight
    170 Grain
  8. 500rds – 40 S&W Browning 180gr. FMJ Ammo 500rds – 40 S&W Browning 180gr. FMJ Ammo
    $189.95
    $0.38/ppr

    37 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    416     Casing Type
    Brass     Muzzle Velocity
    1020     Primer Type
    Boxer     Bullet Weight
    180 Grain
  9. 50rds - 40 S&W PMC 165gr. FMJ Ammo 50rds - 40 S&W PMC 165gr. FMJ Ammo
    $19.75
    $0.39/ppr

    182 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    358     Casing Type
    Brass     Muzzle Velocity
    989     Primer Type
    Boxer     Bullet Weight
    165 Grain
    Ballistic Data Available
  10. 50rds - 40 S&W Sellier & Bellot 180gr. FMJ Ammo 50rds - 40 S&W Sellier & Bellot 180gr. FMJ Ammo
    $19.95
    $0.4/ppr

    ☆☆☆☆☆ 5 Reviews

    48 In Stock

    ☆☆☆☆☆ 5 Reviews

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    375     Casing Type
    Brass     Muzzle Velocity
    968     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  11. 50rds - 40 S&W Aguila 180gr. FMJ Ammo 50rds - 40 S&W Aguila 180gr. FMJ Ammo
    $19.95
    $0.4/ppr

    77 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    441     Casing Type
    Brass     Muzzle Velocity
    1050     Primer Type
    Boxer     Bullet Weight
    180 Grain
  12. 50rds – 40 S&W Magtech 165gr. FMC Flat Ammo 50rds – 40 S&W Magtech 165gr. FMC Flat Ammo
    $19.95
    $0.4/ppr

    ☆☆☆☆☆ 1 Review

    140 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Full Metal Jacket Flat Nose (FMJFN)     Muzzle Energy
    404     Casing Type
    Brass     Muzzle Velocity
    1050     Primer Type
    Boxer     Bullet Weight
    165 Grain
  13. 500rds – 40 S&W Winchester Super Clean 120gr. Lead-Free FMJ Ammo 500rds – 40 S&W Winchester Super Clean 120gr. Lead-Free FMJ Ammo
    $199.95
    $0.4/ppr

    30 In Stock

    Bullet type
    Lead Free     Muzzle Energy
    416     Casing Type
    Brass     Muzzle Velocity
    1250     Primer Type
    Boxer     Bullet Weight
    120 Grain
  14. 500rds - 40 S&W Winchester USA 180gr. FMJ Ammo 500rds - 40 S&W Winchester USA 180gr. FMJ Ammo
    $209.95
    $0.42/ppr

    ☆☆☆☆☆ 1 Review

    29 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    416     Casing Type
    Brass     Muzzle Velocity
    1020     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  15. 1000rds – 40 S&W Sellier & Bellot 180gr. JHP Ammo 1000rds – 40 S&W Sellier & Bellot 180gr. JHP Ammo
    $419.95
    $0.42/ppr

    7 In Stock

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    379     Casing Type
    Brass     Muzzle Velocity
    974     Primer Type
    Boxer     Bullet Weight
    180 Grain
  16. 50rds – 40 S&W Magtech 180gr. FMJ Flat Ammo 50rds – 40 S&W Magtech 180gr. FMJ Flat Ammo
    $21.95
    $0.44/ppr

    ☆☆☆☆☆ 5 Reviews

    172 In Stock

    ☆☆☆☆☆ 5 Reviews

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    392     Casing Type
    Brass     Muzzle Velocity
    990     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  17. 50rds - 40 S&W Speer Lawman 180gr. TMJ Ammo 50rds - 40 S&W Speer Lawman 180gr. TMJ Ammo
    $21.95
    $0.44/ppr

    76 In Stock

    Bullet type
    Total Metal Jacket (TMJ)     Muzzle Energy
    388     Casing Type
    Brass     Muzzle Velocity
    985     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  18. 50rds - 40 S&W PMC 180gr. FMJ Ammo 50rds - 40 S&W PMC 180gr. FMJ Ammo
    $21.95
    $0.44/ppr

    131 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    388     Casing Type
    Brass     Muzzle Velocity
    985     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  19. 50rds – 40 S&W Winchester USA Ready 165gr. FMJ FN Ammo 50rds – 40 S&W Winchester USA Ready 165gr. FMJ FN Ammo
    $21.95
    $0.44/ppr

    65 In Stock

    Bullet type
    Full Metal Jacket Flat Nose (FMJFN)     Muzzle Energy
    412     Casing Type
    Brass     Muzzle Velocity
    1060     Primer Type
    Boxer     Bullet Weight
    165 Grain
  20. 50rds - 40 S&W Winchester USA 180gr. FMJ Ammo 50rds - 40 S&W Winchester USA 180gr. FMJ Ammo
    $22.95
    $0.46/ppr

    22 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    416     Casing Type
    Brass     Muzzle Velocity
    1020     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available

1 - 20 of 67

Geltest header image

40 S&W ballistic gel test results

We shot 28 self-defense loads of 40 S&W ammo into ballistic gel

Used firearms icon
Firearm Used S&W M&P40c
Barrel length icon
Barrel Length 3.5"
Distance target icon
Distance to Target 10 Feet
Barrier icon
Barrier 4-layer cloth
Ammo 5-shot average penetration depth 5-shot average diameter 5-shot average velocity
20rds - 40 S&W Barnes 140gr. TAC-XPD HP Ammo 20rds - 40 S&W Barnes 140gr. TAC-XPD HP Ammo
  11.7"
0.76" 1027
20rds – 40 S&W Black Hills 140gr. Barnes TAC-XP HP Ammo 20rds – 40 S&W Black Hills 140gr. Barnes TAC-XP HP Ammo
  11.06"
0.73" 1088
20rds – 40 S&W Black Hills 180gr. JHP Ammo 20rds – 40 S&W Black Hills 180gr. JHP Ammo
  21.98"
0.43" 957
20rds - 40 S&W Federal Hydra-Shok 165gr. HP Ammo 500rds – 40 S&W Federal Hydra-Shok 165 gr. JHP Ammo 500rds – 40 S&W Federal Hydra-Shok 165 gr. JHP Ammo
  16.7"
0.48" 960
50rds - 40 S&W Federal LE Tactical HST 165gr. HP Ammo 1000rds – 40 S&W Federal Premium Law Enforcement 165gr. HST JHP Ammo 1000rds – 40 S&W Federal Premium Law Enforcement 165gr. HST JHP Ammo
  18.92"
0.68" 1037
20rds – 40 S&W Federal Personal Defense 180gr. HST Ammo 20rds – 40 S&W Federal Personal Defense 180gr. HST Ammo
  15.4"
0.72" 940
1000rds - 40 S&W Federal Premium Tactical 180gr. HST JHP Ammo 50rds – 40 S&W Federal Tactical 180gr. HST Ammo 50rds – 40 S&W Federal Tactical 180gr. HST Ammo
  15.38"
0.69" 983
20rds - 40 S&W G2 Research RIP 115gr. HP LF Ammo 20rds - 40 S&W G2 Research RIP 115gr. HP LF Ammo
  10.68"
0.4" 1082
20rds - 40 S&W Hornady 180gr. XTP Jacketed Hollow Point Ammo 200rds – 40 S&W Hornady Custom 180gr. XTP Ammo 200rds – 40 S&W Hornady Custom 180gr. XTP Ammo
  23.28"
0.4" 913
20rds - 40 S&W Hornady Critical Defense 165gr. HP Ammo 200rds - 40 S&W Hornady Critical Defense 165gr HP Ammo 200rds - 40 S&W Hornady Critical Defense 165gr HP Ammo
  18.68"
0.47" 1047
20rds – 40 S&W Hornady Critical Duty 175gr. FlexLock Ammo 200rds - 40 S&W Hornady Critical Duty 175gr. FlexLock HP Ammo 200rds - 40 S&W Hornady Critical Duty 175gr. FlexLock HP Ammo
  19.34"
0.47" 978
20rds - 40 S&W Magtech First Defense Justice 130gr. SCHP Ammo 20rds - 40 S&W Magtech First Defense Justice 130gr. SCHP Ammo
  13.7"
0.69" 1233
50rds - 40 S&W Remington Golden Saber Black Belt 180gr. BJHP Ammo 50rds - 40 S&W Remington Golden Saber Black Belt 180gr. BJHP Ammo
  20.84"
0.45" 864
20rds - 40 S&W Sig-Sauer Elite Performance Ammunition 165gr. V-Crown JHP Ammo 20rds - 40 S&W Sig-Sauer Elite Performance Ammunition 165gr. V-Crown JHP Ammo
  20.26"
0.48" 1016
1000rds - 40 S&W Speer Gold Dot LE 155gr. GDHP Ammo 50rds – 40 S&W Speer LE Gold Dot 155gr. JHP Ammo 50rds – 40 S&W Speer LE Gold Dot 155gr. JHP Ammo
  15.08"
0.63" 1143
50rds – 40 S&W Speer LE Gold Dot 165gr. JHP Ammo 1000rds - 40 S&W Speer Gold Dot LE 165gr. JHP Ammo 1000rds - 40 S&W Speer Gold Dot LE 165gr. JHP Ammo
  15.88"
0.62" 1080
50rds - 40 S&W Speer LE Gold Dot 180gr. HP Ammo 1000rds – 40 S&W Speer Gold Dot 180gr. Bonded JHP Ammo 1000rds – 40 S&W Speer Gold Dot 180gr. Bonded JHP Ammo
  14.58"
0.64" 969
20rds – 40 S&W Speer Gold Dot 165gr. JHP Ammo 20rds – 40 S&W Speer Gold Dot 165gr. JHP Ammo
  17.24"
0.54" 1036
50rds - 40 S&W Winchester Silvertip 155gr. Hollow Point Ammo 500rds - 40 S&W Winchester Silvertip 155gr. Hollow Point Ammo 500rds - 40 S&W Winchester Silvertip 155gr. Hollow Point Ammo
  16.26"
0.62" 1214
20rds – 40 S&W Winchester Defender 165gr. PDX1 Bonded JHP Ammo
  16.44"
0.71" 1069
20rds – 40 S&W Winchester Defender 180gr. PDX1 Bonded JHP Ammo 20rds – 40 S&W Winchester Defender 180gr. PDX1 Bonded JHP Ammo
  17.02"
0.67" 979
20rds - 40 S&W Winchester W Train and Defend 180gr. JHP Ammo 200rds - 40 S&W Winchester W Train and Defend 180gr. JHP Ammo 200rds - 40 S&W Winchester W Train and Defend 180gr. JHP Ammo
  16"
0.66" 868
50rds – 40 S&W Winchester Ranger T-Series 180gr. JHP Ammo - Law Enforcement Trade-In 500rds – 40 S&W Winchester Ranger T-Series 180gr. JHP Ammo - Law Enforcement Trade-In 500rds – 40 S&W Winchester Ranger T-Series 180gr. JHP Ammo - Law Enforcement Trade-In
  16.46"
0.74" 1118
50rds – 40 S&W Winchester Ranger T-Series 165gr. JHP Ammo - Law Enforcement Trade-In 500rds - 40 S&W Winchester Ranger Talon 165gr. HP Ammo 500rds - 40 S&W Winchester Ranger Talon 165gr. HP Ammo
  15.84"
0.73" 1127
50rds - 40 S&W Federal LE Tactical HST 180gr. HP Ammo 1000rds - 40 S&W Federal Premium Law Enforcement HST 180gr. JHP Ammo 1000rds - 40 S&W Federal Premium Law Enforcement HST 180gr. JHP Ammo
  16.4"
0.72" 962
50rds - 40 S&W Federal Train + Protect 180gr. VHP Ammo 50rds - 40 S&W Federal Train + Protect 180gr. VHP Ammo
  21.72"
0.46" 914
20rds - 40 S&W Magtech 130gr. First Defense Solid Copper HP Ammo 20rds - 40 S&W Magtech 130gr. First Defense Solid Copper HP Ammo
  13.5"
0.59" 1086
20rds - 40 S&W MAGTECH Guardian Gold 155gr. HP Ammo 20rds - 40 S&W MAGTECH Guardian Gold 155gr. HP Ammo
  18.1"
0.58" 1175
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More About 40 S&W Ammo

When Was the .40 S&W Created?

In the world of firearms, the .40 S&W is actually a fairly new cartridge. It was created in 1990 after an infamous shootout between two bank robbers and eight FBI agents. Two agents lost their lives in a gun battle that saw the law enforcement personnel heavily outgunned. Despite being hit by the agents, the bank robbers were able to continue fighting, although they were eventually killed by law enforcement. In the aftermath, the FBI commissioned the production of a powerful cartridge with manageable recoil, giving law enforcement stopping power while allowing for accurate secondary shots. With this goal in mind, the .40 S&W was born.

What Does the “S&W” Mean?

“S&W” stands for Smith & Wesson, the company that was primarily responsible for creating the cartridge. It is common practice, dating back to the 1800’s, to have companies put their names on ammunition. This is seen in rounds like the .223 Remington, .270 Winchester, and 9mm Luger.

How Does the .40 S&W Compare to the 9mm Luger?

While these two cartridges are often compared, due mostly to the overall popularity of both, they are distinctly different products. The biggest difference is size: .40 S&W is noticeably larger than 9mm Luger ammo and has a wider bullet and neck diameter. They do, however, have similar overall lengths. Because of the wider diameters, the .40 S&W generally has higher stats for power. Head to our blog for more on how 40 S&W compares to 9mm.

Is a 10mm Auto the Same as a .40 S&W?

No. While these two cartridges are similar in diameters, they are different in overall length. They both have bullet diameters of .4 inches, but the 10mm Auto has a longer overall length. The result is that the 10mm Auto generally fires at a faster speed and has more power compared to the .40 S&W, assuming the cartridges are loaded with similar bullets. The .40 S&W, however, has lighter recoil. In fact, it was designed to have a forceful impact with lighter recoil, which makes for accurate followup shots.

What Type of .40 S&W Ammo Should I Purchase?

That depends on the purpose for your ammunition. If you are using the cartridges for target practice or competition, you will likely want full metal jacket rounds, which cycle with greater ease and leave less fouling in the barrel. On the other hand, if you are loading your weapon for self defense, you will want expanding rounds, such as jacketed hollow points or jacketed soft-nose bullets.

Recent 40 S&W Reviews

  • ☆☆☆☆☆
    In my opinion, the Winchester Ranger T series is the best EDC ammo out there in .40 S&W. It's extremely hard to find as well. I had been searching for it for quite some time and the only place I found it was at Ammo To Go.
    Pete B. on 50rds – 40 S&W Winchester Ranger T-Series 180gr. JHP Ammo - Law Enforcement Trade-In
  • ☆☆☆☆☆
    Hardest hitting round 484 foot pounds and 1100 FPS and great speed to hit any target quick
    Steven Goellner on 20rds – 40 S&W Underwood 180gr. JHP Ammo
  • ☆☆☆☆☆
    indoors. tr. top. avoiding. the. round. from. hitting. another. in. the. seperate. room while. still. having. stoping. force. on an. intruder. !
    jimenez on 6rds - 40 S&W Rubber Projectile Ammo
  • ☆☆☆☆☆
    I understand people at first saying that this round was a gimmick. I even waited for two iterations of this round before giving it a good go. With this being the third generation of the RIP projectile, I can definitely say that they got it right. They serrated the trocars so that they would penetrate deeper which was an absolute pro move. They also added weight to them, and now the trocar penetrate deeper in ballistics gel and view any x-ray of an RIP bullet victim and you will see I just how deep the trocars now penetrate and spread. I was once a skeptic, and I certainly believe the first generation had its issues. But now I am an absolute believer, and would not trust any other round for within my home, where I need around to dump all of its energy into the intended target and not leave any projectile outside of them.
    TD on 20rds - 40 S&W G2 Research RIP 115gr. HP LF Ammo