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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 73

  1. 500rds - 40 S&W Winchester USA Value Pack 165gr. FMJ Ammo 500rds - 40 S&W Winchester USA Value Pack 165gr. FMJ Ammo

    $149.95

    $139.95

    $0.28/ppr

    ☆☆☆☆☆ 3 Reviews

    43 In Stock

    ☆☆☆☆☆ 3 Reviews

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    412     Casing Type
    Brass     Muzzle Velocity
    1060     Primer Type
    Boxer     Bullet Weight
    165 Grain
  2. 500rds - 40 S&W Winchester USA 165gr. FMJ Ammo 500rds - 40 S&W Winchester USA 165gr. FMJ Ammo Video
    $154.95
    $0.31/ppr

    ☆☆☆☆☆ 1 Review

    26 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Full Metal Jacket Flat Nose (FMJFN)     Muzzle Energy
    412     Casing Type
    Brass     Muzzle Velocity
    1060     Primer Type
    Boxer     Bullet Weight
    165 Grain
  3. 1000rds - 40 S&W CCI Blazer 180gr. TMJ Clean-Fire Ammo 1000rds - 40 S&W CCI Blazer 180gr. TMJ Clean-Fire Ammo
    $309.95
    $0.31/ppr

    21 In Stock

    Bullet type
    Total Metal Jacket (TMJ)     Muzzle Energy
    400     Casing Type
    Aluminum     Muzzle Velocity
    1000     Primer Type
    Berdan     Bullet Weight
    180 Grain
  4. 1000rds - 40 S&W PMC 180gr. FMJ Ammo 1000rds - 40 S&W PMC 180gr. FMJ Ammo

    $349.95

    $324.95

    $0.32/ppr

    ☆☆☆☆☆ 1 Review

    15 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Full Metal Jacket Flat Nose (FMJFN)     Muzzle Energy
    388     Casing Type
    Brass     Muzzle Velocity
    985     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  5. 1000rds - 40 S&W Fiocchi 170gr. FMJ Ammo 1000rds - 40 S&W Fiocchi 170gr. FMJ Ammo
    $329.95
    $0.33/ppr

    ☆☆☆☆☆ 2 Reviews

    13 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
  6. 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

    16 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
  7. 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

    102 In Stock

    Bullet type
    Total Metal Jacket (TMJ)     Muzzle Energy
    400     Casing Type
    Aluminum     Muzzle Velocity
    1000     Primer Type
    Boxer     Bullet Weight
    180 Grain
  8. 100rds - 40 S&W Winchester USA 165gr. FMJ Value Pack Ammo 100rds - 40 S&W Winchester USA 165gr. FMJ Value Pack Ammo
    $33.95
    $0.34/ppr

    ☆☆☆☆☆ 2 Reviews

    31 In Stock

    ☆☆☆☆☆ 2 Reviews

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    412     Casing Type
    Brass     Muzzle Velocity
    1060     Primer Type
    Boxer     Bullet Weight
    165 Grain
    Ballistic Data Available
  9. 1000rds - 40 S&W MAGTECH 180gr. FMJ Ammo 1000rds - 40 S&W MAGTECH 180gr. FMJ Ammo
    $339.95
    $0.34/ppr

    ☆☆☆☆☆ 3 Reviews

    14 In Stock

    ☆☆☆☆☆ 3 Reviews

    Bullet type
    Full Metal Jacket Flat Nose (FMJFN)     Muzzle Energy
    392     Casing Type
    Brass     Muzzle Velocity
    990     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  10. 1000rds - 40 S&W Speer Lawman 180gr. TMJ Ammo 1000rds - 40 S&W Speer Lawman 180gr. TMJ Ammo
    $344.95
    $0.34/ppr

    ☆☆☆☆☆ 1 Review

    15 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
  11. 50rds - 40 S&W Winchester USA 165gr. FMJ Ammo 50rds - 40 S&W Winchester USA 165gr. FMJ Ammo
    $17.55
    $0.35/ppr

    165 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
  12. 1000rds - 40 S&W Blazer Brass 180 Grain FMJ Ammo 1000rds - 40 S&W Blazer Brass 180 Grain FMJ Ammo Video
    $354.95
    $0.35/ppr

    12 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Casing Type
    Brass     Muzzle Velocity
    985     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  13. 50rds - 40 S&W Fiocchi 170gr. FMJ Ammo 50rds - 40 S&W Fiocchi 170gr. FMJ Ammo
    $17.95
    $0.36/ppr

    ☆☆☆☆☆ 2 Reviews

    152 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
  14. 1000rds - 40 S&W Federal American Eagle 165gr. FMJ Ammo 1000rds - 40 S&W Federal American Eagle 165gr. FMJ Ammo Video
    $359.95
    $0.36/ppr

    ☆☆☆☆☆ 5 Reviews

    13 In Stock

    ☆☆☆☆☆ 5 Reviews

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    468     Casing Type
    Brass     Muzzle Velocity
    1130     Primer Type
    Boxer     Bullet Weight
    165 Grain
    Ballistic Data Available
  15. 1000rds - 40 S&W Speer Lawman Clean-Fire 180gr. TMJ Ammo 1000rds - 40 S&W Speer Lawman Clean-Fire 180gr. TMJ Ammo
    $359.95
    $0.36/ppr

    13 In Stock

    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
  16. 1000rds - 40 S&W Federal American Eagle 155gr. FMJ Ammo 1000rds - 40 S&W Federal American Eagle 155gr. FMJ Ammo
    $379.95
    $0.38/ppr

    8 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    430     Casing Type
    Brass     Muzzle Velocity
    1160     Primer Type
    Boxer     Bullet Weight
    155 Grain
    Ballistic Data Available
  17. 1000rds - 40 S&W Remington UMC 180gr. Ammo 1000rds - 40 S&W Remington UMC 180gr. Ammo
    $379.95
    $0.38/ppr

    3 In Stock

    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
  18. 50rds - 40 S&W PMC 165gr. FMJ Ammo 50rds - 40 S&W PMC 165gr. FMJ Ammo
    $19.75
    $0.39/ppr

    180 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
  19. 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

    33 In Stock

    Bullet type
    Lead Free     Muzzle Energy
    416     Casing Type
    Brass     Muzzle Velocity
    1250     Primer Type
    Boxer     Bullet Weight
    120 Grain
  20. 1000rds – 40 S&W Fiocchi 180gr. JHP Ammo 1000rds – 40 S&W Fiocchi 180gr. JHP Ammo
    $399.95
    $0.4/ppr

    8 In Stock

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    400     Casing Type
    Brass     Muzzle Velocity
    1000     Primer Type
    Boxer     Bullet Weight
    180 Grain

1 - 20 of 73

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
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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