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.40 S&W Ammo

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    Federal American Eagle Handgun .40 S&W 155 gr Full Metal Jacket (FMJ) 50 Per Box

    Federal
    In stock

    Hit your target and train harder with the proven line of american eagle handgun ammunition.It provides performance similar to self-defense and comp...

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    $ 30.69
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    $ 25.99
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    $ 25.99
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  • $ 27.29 - $ 27.29
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    $ 27.99

    Federal American Eagle Handgun .40 S&W 180 gr Full Metal Jacket (FMJ) 50 Per Box

    Federal
    In stock

    Hit your target and train harder with the proven line of american eagle handgun ammunition.It provides performance similar to self-defense and comp...

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    $ 27.29 - $ 27.29
    $ 27.29
    $ 27.99
    $ 27.99 - $ 27.99
    $ 27.99
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    $ 30.69
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    Federal American Eagle Handgun .40 S&W 165 gr Full Metal Jacket (FMJ) 50 Per Box

    Federal
    In stock

    Hit your target and train harder with the proven line of american eagle handgun ammunition.It provides performance similar to self-defense and comp...

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    $ 30.69
    $ 30.69 - $ 30.69
    $ 30.69
    $ 27.99
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    $ 27.99
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    Federal Premium Personal Defense .40 S&W 165 gr Hydra-Shok Deep Hollow Point 20 Per Box

    Federal
    In stock

    The federal premium loads start with the finest primers, which are subjected to more frequent inspections for dimensional tolerances and charge wei...

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    $ 30.98 - $ 30.98
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    $ 53.55
    $ 54.99
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    Federal American Eagle Handgun .40 S&W 180 gr Full Metal Jacket (FMJ) 100 Per Box

    Federal
    In stock

    Hit your target and train harder with the proven line of american eagle handgun ammunition.It provides performance similar to self-defense and comp...

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    $ 53.55 - $ 53.55
    $ 53.55
    $ 54.99
    $ 54.99 - $ 54.99
    $ 54.99
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    $ 38.67
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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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    $ 29.57
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    Federal Champion Training Training .40 S&W 180 gr Full Metal Jacket (FMJ) 50 Per Box

    Federal
    In stock

    Federal champion handgun loads provide accurate, target-grade performance.They're loaded with quality brass and primers and are affordably priced f...

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    $ 35.28
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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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    $ 25.05
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    Federal .40 S&W 180gr Range And Target FMJ Ammunition - 50 Round Box

    Federal
    In stock

    The range target practice load features a full metal jacket bullet with a brass case.Caliber: 40 S&WBullet Type: Full Metal Jacket (FMJ)Bullet ...

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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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    $ 30.24
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    Federal Premium .40 S&W 165 gr Hydra-Shok Jacketed Hollow Point 20 Per Box

    Federal
    In stock

    The federal premium loads start with the finest primers, which are subjected to more frequent inspections for dimensional tolerances and charge wei...

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    $ 24.89
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    Federal Premium Defense Punch .40 S&W 165 gr Jacketed Hollow Point (JHP) 20 Per Box

    Federal
    In stock

    The federal premium loads start with the finest primers, which are subjected to more frequent inspections for dimensional tolerances and charge wei...

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    Federal American Eagle Syntech Range Training .40 S&W 165 Gr. Total Syntech Jacket Flat Nose (TSF) 50 Per Box

    Federal
    In stock

    The exclusive polymer coating in american eagle syntech ammunition prevents harsh metal-on-metal contact between the bullet and bore, eliminating c...

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    $ 35.52
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    Federal Premium Defense .40 S&W 180 gr HST Jacketed Hollow Point 20 Per Box

    Federal
    In stock

    The federal premium loads start with the finest primers, which are subjected to more frequent inspections for dimensional tolerances and charge wei...

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    $ 41.31
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    Federal Train + Protect Training .40 S&W 180 gr Versatile Hollow Point (VHP) 50 Per Box

    Federal
    In stock

    Federal train + protect proudly honors the american birthright to bear arms with a vhp bullet design that provides both precise, practical, perform...

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    $ 118.31
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    $ 98.99
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    Federal .40 S&W 180gr Champion FMJ Ammunition - 200 Round Box

    Federal
    In stock

    Federal champion handgun loads provide accurate, target-grade performance.They're loaded with quality brass and primers and are affordably priced f...

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    $ 118.31
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    $ 118.31
    $ 98.99
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    $ 98.99
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    $ 34.97
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    Federal Premium Hunting .40 S&W 165 gr Solid Core Synthetic Flat Nose 20 Per Box

    Federal
    In stock

    The federal premium loads start with the finest primers, which are subjected to more frequent inspections for dimensional tolerances and charge wei...

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    $ 17.99 - $ 17.99
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    Federal .40 S&W 180gr Range Target Practice Ammunition - 50 Round Box

    Federal
    Out of stock

    Federal Range and Target Handgun Ammunition .40 S&W 180 Grain Full Metal JacketFederal Range and Target AmmunitionFull metal jacket and brass c...

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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!