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40 Cal (S&W) Ammo For Sale

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The .40 Smith & Wesson is a leading cartridge among law enforcement organizations in America and is also popular among civilians for personal protection and sport shooting. To shop 40 S&W ammo in bulk, check out our bulk 40 S&W ammo page. Learn More
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  1. Speer 40 cal Ammo - 1000 Rounds of 180 Grain TMJ Ammunition

    Image of Speer 40 cal Ammo - 1000 Rounds of 180 Grain TMJ Ammunition
    $344.99
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    29 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type TMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1000 FPS
    Muzzle Energy 400 ft lbs
    • 1000 Rounds
    • 34.5¢ per round
    • Made by Speer

  2. Speer 40 cal Ammo - 50 Rounds of 165 Grain TMJ Ammunition

    Image of Speer 40 cal Ammo - 50 Rounds of 165 Grain TMJ Ammunition
    $21.99

    1 Review

    64 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type TMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1150 FPS
    Muzzle Energy 484 ft lbs
    • 50 Rounds
    • 44¢ per round
    • Made by Speer

  3. Speer 40 cal Ammo - 50 Rounds of 180 Grain TMJ Ammunition

    Image of Speer 40 cal Ammo - 50 Rounds of 180 Grain TMJ Ammunition
    $21.99

    1 Review

    66 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type TMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 985 FPS
    Muzzle Energy 388 ft lbs
    • 50 Rounds
    • 44¢ per round
    • Made by Speer

  4. Speer 40 cal Ammo - 50 Rounds of 165 Grain JHP Ammunition

    Image of Speer 40 cal Ammo - 50 Rounds of 165 Grain JHP Ammunition
    $40.00

    2 Reviews

    37 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type JHP
    Primer Type Boxer
    Casing Type Nickel-Plated Brass
    Condition New
    Muzzle Velocity 1150 FPS
    Muzzle Energy 484 ft lbs
    • 50 Rounds
    • 80¢ per round
    • Made by Speer

  5. Speer 40 cal Ammo - 1000 Rounds of 165 Grain JHP Ammunition

    Image of Speer 40 cal Ammo - 1000 Rounds of 165 Grain JHP Ammunition
    $799.99
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    2 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type JHP
    Primer Type Boxer
    Casing Type Nickel-Plated Brass
    Condition New
    Muzzle Velocity 1150 FPS
    Muzzle Energy 484 ft lbs
    • 1000 Rounds
    • 80¢ per round
    • Made by Speer

  6. Speer LE Gold Dot G2 40 S&W Ammo - 50 Rounds of 180 Grain JHP Ammunition

    Image of Speer LE Gold Dot G2 40 S&W Ammo - 50 Rounds of 180 Grain JHP Ammunition
    $40.49

    1 Review

    36 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type JHP
    Primer Type Boxer
    Casing Type Nickel-Plated Brass
    Condition New
    Muzzle Velocity 910 FPS
    Muzzle Energy 331 ft lbs
    • 50 Rounds
    • 81¢ per round
    • Made by Speer

  7. Speer 40 cal Ammo - 50 Rounds of 180 Grain JHP Ammunition

    Image of Speer 40 cal Ammo - 50 Rounds of 180 Grain JHP Ammunition
    $40.50

    2 Reviews

    85 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type JHP
    Primer Type Boxer
    Casing Type Nickel-Plated Brass
    Condition New
    Muzzle Velocity 1025 FPS
    Muzzle Energy 420 ft lbs
    • 50 Rounds
    • 81¢ per round
    • Made by Speer

  8. Speer 40 cal Ammo - 20 Rounds of 165 Grain JHP Ammunition

    Image of Speer 40 cal Ammo - 20 Rounds of 165 Grain JHP Ammunition
    $29.99
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    18 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type JHP
    Primer Type Boxer
    Casing Type Nickel-Plated Brass
    Condition New
    Muzzle Velocity 1150 FPS
    Muzzle Energy 484 ft lbs
    • 20 Rounds
    • $1.5 per round
    • Made by Speer

History of 40 Cal (S&W) Ammo

The .40 S&W cartridge was developed to provide more stopping power than the 9mm Parabellum and better handling than the .45 ACP. A team from Smith & Wesson and Winchester achieved these goals, creating a rimless, 10x22mm round with a .40-inch (10mm) bullet weighing between 105 and 200 grains (gr). This cartridge offers enough stopping power for home defense and concealed carry while being manageable for shooters of various sizes.

What are the most popular .40 cal brands you sell?

You can filter our entire selection using the left sidebar to see which brands we currently have in-stock and available using the Manufacturers filter. You can also filter by attributes such as Bullet Type, Bullet Weight, Casing Type, and Primer Type to find what you need.

Best .40 Cal Ammo for Specific Uses

Use Case Details
Best .40 S&W Ammo Best Overall: Hornady Critical Defense 165gr Runner Up: Winchester USA Ready Defense 170gr
Best .40 S&W Ammo for Self-Defense Best Overall: Speer Gold Dot 165 gr JHP Runner Up: Winchester PDX1 Defender 165 gr JHP

You can also check out our in-depth look at 40 Cal ballistics from all of the popular ammo manufacturers if you're in search of ballistics data for your favorite factory load.


Molly Carter
Written by
Molly Carter

Customer Reviews

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Speer 40 cal Ammo - 50 Rounds of 165 Grain TMJ Ammunition
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  • Steve said:

    Ammo seemed to work well . It was shipped on time and we are very happy with it. We will order again along with some .45acp when you have it available

Click To Purchase This 40 Cal Speer Ammunition
Speer 40 cal Ammo - 50 Rounds of 180 Grain TMJ Ammunition
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  • Bud said:

    Great price and quick delivery. All is good, no issues.

Click To Purchase This 40 Cal Speer Ammunition
Speer 40 cal Ammo - 50 Rounds of 165 Grain JHP Ammunition
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  • Directus ledo said:

    The service was very prompt and the communication was very good too. Shipping and processing times were executed in a timely manner. I would recommend Ammo.com to my friends and associates.

  • Uncle Bub said:

    Gold Dots are some of the bet you can get. Got it here for a fair price and good fast shipping. Thanks!!!

Click To Purchase This 40 Cal Speer Ammunition
Speer LE Gold Dot G2 40 S&W Ammo - 50 Rounds of 180 Grain JHP Ammunition
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  • Richard said:

    Shot well,no feed problems Shot with wooden back stop The bullet did not expand as what I expected... Definitely good penetration

Click To Purchase This 40 Cal Speer Ammunition
Speer 40 cal Ammo - 50 Rounds of 180 Grain JHP Ammunition
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  • Mark said:

    All fired all good

  • Mark said:

    Order on the 6th got them on the 8th fast shipping ammo looks great. Price was pretty good

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