Popular Ammo>40 Cal Ammo

40 Cal Ammo for Sale - Buy 40 Cal Ammunition Online

40 cal ammo is for sale every day at GunBroker.com. You can buy this type of ammunition made by manufacturers such as Remington and Hornady through one of the many sellers listing their products here at GunBroker.com, the world's largest gun auction site.

Getting to know 40 cal ammo

.40 caliber ammo features rimless, straight cartridges, which were originally developed at the behest of the FBI, which aimed to replace agents’ standard-issue revolvers with semiautomatic pistols in order to increase ammo capacity and reduce reloading times in the field.

The FBI specifically requested that Smith and Wesson produce a new handgun based on the existing Model 4506 .45 that could function with 10mm ammunition. By reducing powder in existing 10mm ammunition, thus providing more airspace in the case, S&W realized it could produce ballistics to match the FBI’s specifications. S&W then teamed with Winchester to produce the new cartridge, the .40 S&W.

40 cal ammo debuted in January 1990, but it was actually Glock that had the first commercially available pistols chambered to fit the new cartridges.

40 cal ammo specifications

The biggest difference between the 40 cal ammo cartridge and its parent case, the 10mm Auto, is the 40 cal ammo’s use of a small pistol primer and shortened length. The neck and shoulder diameter of .40 cal ammo cartridges is .423 inches. The base and rim come in at .424 inches with a thickness of .055 inches. The case is .850 inches of the overall length, 1.135 inches. The rifling twist is 1 in 16 inches.

Get your 40 cal ammo today

40 cal ammo is ideal for self-defense and is popular with law enforcement in the US, Canada and Australia. GunBroker.com sellers update their auction listings frequently, so if you're looking to buy 40 cal or other pistol ammo, check back often.

40 For Sale


Displaying the first 10000 items that match your criteria. Please refine your search.
Item   Title      Click Headers to Sort Quantity Bids Price Time Left
659854228
 
 
 
 
10 $3,599.99 89d 21h +
659841070
 
 
 
10 $969.00 89d 21h +
659770123
 
 
 
10 $459.00 89d 16h +
659189636
 
 
 
20 $589.99 87d 21h +
658504563
 
 
 
10 $579.00 85d 21h +
658502349
 
 
 
10 $539.00 85d 21h +
658384066
 
 
 
10 $2,399.00 85d 14h +
657615208
 
 
 
10 $539.00 82d 21h +
659683643
 
 
 
40 $169.00 82d 1h +
656641257
 
 
 
10 $429.99 79d 22h +
656279020
 
 
 
 
70 $269.99 78d 19h +
655835742
 
 
 
10 $112,000.00 77d 7h +
654962625
 
 
 
20 $69.99 74d 18h +
654640271
 
 
 
 
10 $399.00 73d 18h +
659776002
 
 
 
 
60 $299.00 73d 12h +
653497373
 
 
 
10 $250.00 70d 1h +
653410755
 
 
 
10 $225.00 69d 22h +
653037941
 
 
 
10 $649.99 68d 17h +
652859575
 
 
 
30 $365.00 68d 1h +
657619701
 
 
 
 
40 $78.99 66d 3h +
652142028
 
 
 
 
60 $512.78 65d 22h +
652140907
 
 
 
 
80 $642.85 65d 22h +
652140743
 
 
 
 
150 $549.33 65d 22h +
652140548
 
 
 
 
80 $549.33 65d 22h +
652138530
 
 
 
 
50 $515.74 65d 22h +
652138295
 
 
 
 
100 $639.86 65d 22h +
652137905
 
 
 
 
250 $546.77 65d 22h +
652137690
 
 
 
 
100 $546.77 65d 22h +
652134750
 
 
 
 
80 $405.28 65d 22h +
652134297
 
 
 
 
20 $613.83 65d 22h +
652134092
 
 
 
 
140 $504.18 65d 22h +
652133067
 
 
 
 
190 $504.18 65d 22h +
652131869
 
 
 
 
1330 $497.73 65d 22h +
652131688
 
 
 
 
150 $497.73 65d 22h +
652130465
 
 
 
 
280 $553.63 65d 22h +
652130418
 
 
 
 
250 $554.77 65d 22h +
652127306
 
 
 
 
40 $554.77 65d 22h +
652125549
 
 
 
 
490 $405.28 65d 21h +
652124278
 
 
 
 
240 $405.28 65d 21h +
652123621
 
 
 
 
190 $451.50 65d 21h +
652123227
 
 
 
 
80 $454.75 65d 21h +
652123173
 
 
 
 
250 $552.12 65d 21h +
652122628
 
 
 
 
10 $452.43 65d 21h +
652122364
 
 
 
 
110 $454.75 65d 21h +
652122346
 
 
 
 
50 $1,085.74 65d 21h +
652122313
 
 
 
 
90 $452.43 65d 21h +
652122139
 
 
 
 
2990 $456.88 65d 21h +
652122096
 
 
 
 
610 $451.50 65d 21h +
652121778
 
 
 
 
320 $672.95 65d 21h +
652120830
 
 
 
 
240 $587.43 65d 21h +
Key:  Pictures   Fixed Price   Reserve   BuyNow!  Featured Item   QuickLook  Immediate Checkout
Ending times displayed are scheduled ending times subject to our 15 minute rule
Updated: 6/23/2017 6:43:18 PM EST   Check GunBroker.com official time

Loading QuickLook...

cancel