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.40 S&W Ammo

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    Speer Lawman Training RHT .40 S&W 125 gr SinterFire Frangible 50 Per Box

    Speer Ammo
    In stock

    Speer lawman is extremely reliable, with feel and point of aim that's as close as possible to comparable defense loads.Each load features reloadabl...

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    Winchester Super-X .40 S&W 165 gr Winclean Brass Enclosed Base 50 Per box

    Winchester Ammo
    In stock

    Super-x ammunition has provided exceptional quality and outstanding performance for all types of hunters and shooters who rely on its time-proven d...

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    Federal BallistiClean Reduced Hazard Training .40 S&W 125 gr Lead-Free Frangible 50 Per Box

    Federal
    In stock

    Federal's ballisticlean is a non-toxic projectile that eliminates hazard of airborne lead and barrel fouling.Its patented toxic-metal free primer p...

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    Federal American Eagle IRT Training .40 S&W 120 gr Lead-Free IRT 50 Per Box

    Federal
    In stock

    Range time has never been this clean.For years, american eagle indoor range training (irt) ammunition has helped shooters minimize lead at the firi...

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    CCI Blazer Clean-Fire .40 S&W Lead-Free 180 gr Total Metal Jacket (TMJ) 50 Per Box

    CCI
    In stock

    Like all blazer options, clean-fire offers reliable, accurate performance for target shooting.Clean up the range with this load's tmj bullet and cc...

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    Winchester Ammo Super Clean .40 S&W 120 gr Lead Free Full Metal Jacket 50 Per Box

    Winchester Ammo
    In stock

    Super clean lead free ammunition is specially designed with a lead free and heavy metal free primer and a full metal jacket bullet with a zinc core...

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    $ 29.67
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    Federal American Eagle Syntech Pistol Training .40 S&W 205 gr Total Syntech Jacket Flat Nose (TSF) 50 Per Box

    Federal
    In stock

    Shooters who compete at the highest levels need ammunition built for the demands of their discipline.Syntech action pistol is specifically designed...

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    Liberty Ammunition Civil Defense .40 S&W 60 gr Lead-Free Fragmenting HP (LFFHP) 20 Per Box

    Liberty Ammunition
    In stock

    Liberty's patented lead-free high-performance ammunition combines a significantly flatter trajectory, immediate synchronous spin, optimization for ...

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    Sinterfire Inc Special Duty (SD) .40 S&W 125 Gr Lead Free Frangible Hollow Point 20 Per Box

    SINTERFIRE INC
    In stock

    Sinterfire ammunition is designed to increase safety and minimize the environmental concerns from lead.The ammunition is loaded with sinterfire pro...

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    Magtech .40 S&W 180 gr Clean Range Fully Encapsulated Ammunition - 50 Round Box

    Magtech
    In stock

    The magtech clean range line is manufactured using a non-toxic primer and fully encapsulated projectile to eliminate exposure to lead and heavy met...

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    SinterFire Inc Next Generation (NXG) .40 S&W 125 gr Lead Free Ball 50 Per Box

    SINTERFIRE INC
    In stock

    Sinterfire ammunition is designed to increase safety and minimize the environmental concerns from lead.The ammunition is loaded with sinterfire pro...

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    1776 USA Lead Free Sporting 40 S&W 115 Gr Lead Free Ball 50 Per Box

    1776 USA
    Out of stock

    Provides a low-cost lead-free solution for the sporting ammunition industry.This projectile is a sponge alloy of iron/copper core and wrapped in a ...

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    DRT 40 S&W 115gr Lead Free Training Frangible NJFR Ammunition - 50 Round Box (New Product, Limited Supply)

    DRT
    Out of stock

    This product is a jacketless frangible. It is purely for training and not intended to be used as a self defense round. It is a non-lead projectil...

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    ICC .40 S&W 125gr Duty & Defense Hollow Point Ammunition - 50 Round Box

    ICC
    Out of stock

    ICC Duty & Defense Ammunition meets and exceeds the FBI protocol. Upon impact, it is designed to deliver the maximum payload possible in a 360 ...

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    Underwood .40 S&W 115gr. Xtreme Defender Solid Monolithic Hunting & Self Defense Ammunition - 20 Round Box

    Underwood
    Out of stock

    The Xtreme Defender is based on the Xtreme Defense Fluid Transfer Monolithic (FTM®) family of projectiles. The EXD projectile has optimized flute g...

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    Underwood .40 S&W 100gr. Xtreme Defender Solid Monolithic Hunting & Self Defense Ammunition - 20 Round Box

    Underwood
    Out of stock

    The Xtreme Defender is based on the Xtreme Defense Fluid Transfer Monolithic (FTM®) family of projectiles. The EXD projectile has optimized flute g...

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    Cutting Edge Bullets .40 S&W Personal Home Defense Ammunition

    Cutting Edge Bullets
    Out of stock

    Cutting Edge Bullets .40 S&W Personal Home Defense (PHD) Ammunition is an excellent choice for personal protection. PHD ammunition is loaded w...

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    SinterFire .40 S&W 125gr Reduced Hazard Ammunition (RHA) - 50 Round Box

    SinterFire
    Out of stock

    SinterFire .40 S&W Reduced Hazard Ammunition utilizes a lead-free, high performance bullet with a standard primer. Features SinterFire's indus...

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    TB Ammunition: 40 S&W GPM ft. Quadra-Shock™ Technology

    TB Ammunition
    Out of stock

    Announcing the new lead-free, high-performance GPM Quadra-Shock™ ammunition! GPM Quadra-Shock™ offers all the performance of existing non-frangible...

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    SinterFire .40 S&W 125gr Reduced Hazard Ammunition (RHA) - 1,000 Round Bulk Pack

    SinterFire
    Out of stock

    SinterFire .40 S&W Reduced Hazard Ammunition utilizes a lead-free, high performance bullet with a standard primer. Features SinterFire's indus...

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    ICC .40 S&W 125gr Green Elite Training Copper-Tin Ammunition - 50 Round Box

    ICC
    Out of stock

    This frangible 100% lead free round has been designed for use on an indoor range or Close Quarters training environment. It is produced using all n...

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    ICC .40 S&W 125gr Gold Elite Training Copper-Tin Ammunition - 50 Round Box

    ICC
    Out of stock

    This frangible 100% lead free round has been designed for use on an indoor range or Close Quarters training environment. It is produced using all n...

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    ICC .40 S&W Duty & Defense Ammunition - 20 Round Box

    ICC
    Out of stock

    ICC Duty & Defense Ammunition meets and exceeds the FBI protocol. Upon impact, it is designed to deliver the maximum payload possible in a 360 ...

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.40 S&W Ammo

The .40 S&W cartridge traces its roots back to the 1990s when Smith & Wesson and Winchester combined efforts to produce a cartridge intended to fill the gap between the 9mm Luger and the .45 ACP.  The .40 S&W was specifically built for law enforcement with the same bullet diameter as the 10mm (.400 inches) on a shortened case. Used widely as a side arm by law-enforcement agencies, the .40 Smith & Wesson cartridge is an effective and versatile round. It's a faster load then a .45 caliber bullet and heavier than a 9mm bullet. The bullet has very good penetrating power, and as a defensive weapon, can handle most tasks.


Browse through our selection to find the perfect box of .40 Smith and Wesson for your needs, here at Clark Armory!