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40 Cal (S&W) Ammo For Sale

Live Inventory
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. Black Hills Ammunition 40 S&W Ammo - 20 Rounds of 155 Grain JHP Ammunition

    $19.99

    85 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type JHP
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1150 FPS
    Muzzle Energy 455 ft lbs
    • 20 Rounds
    • $1 per round
    • Made by Black Hills Ammunition
  2. Hornady 40 Cal Ammo - 200 Rounds of 155 Grain JHP Ammunition

    $239.99

    2 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type XTP
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1180 FPS
    Muzzle Energy 479 ft lbs
    • 200 Rounds
    • $1.2 per round
    • Made by Hornady
  3. Hornady 40 cal Ammo - 20 Rounds of 155 Grain JHP Ammunition

    $25.99

    17 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type JHP
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1180 FPS
    Muzzle Energy 479 ft lbs
    • 20 Rounds
    • $1.3 per round
    • Made by Hornady

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

  • Investigator Man said:

    I’ve used this Ammo as my duty Ammo as well as my full time carry Ammo for all occasions. It’s stopping power is second to none.. highly reliable and this Ammo will deliver, I have this Ammo in 9mm .40 as well as in .38 / .357. I motto is : Don’t ever buy cheap Ammo when your life depends on it!!

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