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


There are 4140 items that match your criteria.
Item   Title      Click Headers to Sort Quantity Bids Price Time Left
670051817
 
 
 
 
10 $217.91 85d 9h +
669263449
 
 
 
 
200 $165.00 83d 13h +
666740962
 
 
 
 
20 $28.99 78d 3h +
664937728
 
 
 
10 $40.00 74d 10h +
659683643
 
 
 
40 $169.00 53d 15h +
649895352
 
 
 
 
100 $375.00 30d 12h +
671721848
 
 
 
 
30 $89.98 29d 2h +
665071380
 
 
 
 
70 $34.99 25d 16h +
647032307
 
 
 
50 $400.00 22d 4h +
667878036
 
 
 
 
10 $319.00 20d 10h +
672067968
 
 
 
 
10 $134.99 13d 18h +
672067634
 
 
 
 
10 $74.99 13d 18h +
672064444
 
 
 
 
10 $144.99 13d 18h +
672064351
 
 
 
 
10 $89.99 13d 18h +
672062446
 
 
 
 
10 $84.99 13d 18h +
672062222
 
 
 
 
10 $149.99 13d 18h +
672061066
 
 
 
 
10 $169.99 13d 18h +
672057989
 
 
 
 
10 $79.99 13d 18h +
672057571
 
 
 
 
10 $139.99 13d 18h +
672053661
 
 
 
 
10 $99.99 13d 18h +
672052597
 
 
 
 
10 $49.99 13d 18h +
672050776
 
 
 
 
10 $139.99 13d 17h +
672048151
 
 
 
 
10 $59.99 13d 17h +
672046939
 
 
 
 
10 $54.99 13d 17h +
672043500
 
 
 
 
10 $89.99 13d 17h +
672041965
 
 
 
 
10 $139.99 13d 17h +
672040072
 
 
 
 
10 $109.99 13d 17h +
672033426
 
 
 
 
10 $59.99 13d 17h +
672030212
 
 
 
 
10 $64.99 13d 16h +
671830311
 
 
 
10 $55.00 13d 8h +
671740118
 
 
 
12 $107.00 12d 4h +
671031127
 
 
 
10 $22.25 11d 14h +
671125891
 
 
 
 
10 $84.99 10d 18h +
670712661
 
 
 
 
10 $74.99 10d 18h +
671123068
 
 
 
 
10 $89.99 10d 18h +
670703840
 
 
 
 
10 $79.99 10d 18h +
670703018
 
 
 
 
10 $149.99 10d 18h +
670702157
 
 
 
 
10 $84.99 10d 18h +
670701592
 
 
 
 
10 $139.99 10d 18h +
670700007
 
 
 
 
10 $94.99 10d 18h +
670696785
 
 
 
 
10 $144.99 10d 17h +
670696661
 
 
 
 
10 $139.99 10d 17h +
670693037
 
 
 
 
10 $139.99 10d 17h +
670692605
 
 
 
 
10 $109.99 10d 17h +
670687858
 
 
 
 
10 $59.99 10d 17h +
670683743
 
 
 
 
10 $54.99 10d 17h +
670682586
 
 
 
 
10 $134.99 10d 17h +
670673923
 
 
 
 
10 $169.99 10d 17h +
670669709
 
 
 
 
10 $59.99 10d 17h +
670662663
 
 
 
 
10 $64.99 10d 17h +
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: 7/22/2017 4:47:35 AM EST   Check GunBroker.com official time

Loading QuickLook...

cancel