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Ammunition is the expendable source of firepower that can damage targets whenever a gun is fired. There are seven types of cartridge ammunition in the original Borderlands: repeater pistol, revolver, SMG, shotgun, combat rifle, sniper rifle and rocket launcher. In Borderlands 2, repeater pistol and revolver ammunition have been merged as pistol ammunition. In addition, grenades are treated as ammunition, with one unit depleted each time a grenade is lobbed. All weapons deplete their respective ammunition type when fired. The only exceptions are unique repeater The Dove, and all Eridian weapons, which do not use ammo, but rely on an internal energy source that recharges at no cost.

Borderlands

Finding Ammunition

Ammunition displayed in the Ammo Vendor

Ammunition displayed in the Ammo Vendor

Green crates can hold up to six different types of ammo and red weapon chests can hold up to four different types of ammo as well as up to an additional four grenades. Dumpsters, waste piles, skag piles, and tall lockers can occasionally provide a small amount of ammo when opened. Enemies have a chance of dropping ammo when killed, with Badasses also having a chance of dropping a large amount. In the earliest stage of the game ammunition drops will be restricted to the types of weapons recovered; as each new type of weapon is acquired its associated type of ammunition will begin to appear in the game.

Picking up a weapon (either dropped by an enemy or from a weapon chest) will add that weapon's ammo to the character's supply; however weapons are not always fully loaded when found so the actual amount of ammo received is variable.

Ammunition can be purchased from Ammo Vendors. These vending machines also offer SDUs that can increase a character's ammunition storage capacity.

Ammunition drops
Ammunition type Rounds per drop
Playthrough 1 Playthrough 2 Vendor
Combat Rifle 18 36 54
Repeater Pistol 18 36 54
Revolver 6 12 18
Launcher 4 8 12
Shotgun 8 16 24
SMG 24 48 72
Sniper Rifle 6 12 18
Grenade 1 1 3

Eridian Weapons rebuild their internal charge over time.

Ammunition Regeneration

Skills

There are a number of skills that can be used to regenerate ammunition:

Class Mods

Each class has at least one Class Mod that will passively regenerate ammunition for a specific weapon type when that weapon type is equipped, and Roland has a Class Mod that can grant ammunition regeneration for the equipped weapon of everyone in the group:

The Secret Armory of General Knoxx added several new class mods that increase the number of ammunition regenerating COMs.

Weapons

Certain weapons provide self regenerating ammunition supplies:

Formula

The Ammo Regeneration Rate varies as to what type of ammo is regenerated. The following formulas represent the amount of time it takes to regenerate X amount of rounds at +X Ammo Regeneration rate.

For example, at +25 Ammo Regeneration, it will take 5 seconds to regenerate 25 Combat Rifle rounds; however, it will take only 2.5 seconds to regenerate 25 Repeater Pistol rounds.

Ammunition regeneration rates
Ammunition type Rate-time (s)
Combat Rifle 5
Repeater Pistol 2.5
Revolver 10
Launcher 16.75
Shotgun Shells 10
SMG 3.375
Sniper Rifle 12.5

Quotes

Characters quotes when an held weapon is empty:


Borderlands 2

Unlike the previous game, you need to trade with Earl to upgrade ammo capacity.

Eridium Storage Deck Upgrades
Rarity Initial White Green Blue Purple Orange Pink Cyan
Rank 0 1 2 3 4 5 6 7 8 9
Eridium N/A 4 8 12 16 20 50 100 150 200
Upgraded ammo capacity
Backpack 12 15 18 21 24 27 30 33 36 39
Bank 6 8 10 12 14 16 18 20 22 24
Assault Rifle 280 420 560 700 840 980 1120 1260 — —
Grenade 3 4 5 6 7 8 9 10 — —
Pistol 200 300 400 500 600 700 800 900 — —
Launcher 12 15 18 21 24 27 30 33 — —
Shotgun 80 100 120 140 160 180 200 220 — —
SMG 360 540 720 900 1080 1260 1440 1620 — —
Sniper 48 60 72 84 96 108 120 132 — —

Borderlands: The Pre-sequel

The game introduces laser ammo.

Like in Borderlands 2, you can purchase ammo capacity upgrades at the Black Market.

Moonstone Storage Deck Upgrades
Rarity Initial White Green Blue Purple Orange Pink Cyan
Rank 0 1 2 3 4 5 6 7 8 9
Moonstone N/A 4 8 12 16 20 50 100 150 200
Upgraded ammo capacity
Backpack 12 15 18 21 24 27 30 33 36 39
Bank 6 8 10 12 14 16 18 20 22 24
Assault Rifle 280 420 560 700 840 980 1120 1260 — —
Grenade 3 4 5 6 7 8 9 10 — —
Pistol 200 300 400 500 600 700 800 900 — —
Launcher 12 15 18 21 24 27 30 33 — —
Shotgun 80 100 120 140 160 180 200 220 — —
SMG 360 540 720 900 1080 1260 1440 1620 — —
Sniper 48 60 72 84 96 108 120 132 — —
Laser 500 620 740 860 980 1100 1220 1340 — —

Borderlands 3

After completing the Marcus' mission in Sanctuary, the player can buy SDU to increase the capacity of ammo, backpack, Bank and Lost Loot.

Prizes of SDU upgrades
Rarity White Green Blue Purple Orange
Rank 1 2 3 4 5 6 7 8 8+
Price $1,000 $3,000 $9,000 $27,000 $81,000 $243,000 $729,000 $2,187,000 +$1,093,500 each level
Starting capacity raises per level Max Unlocked Max capacity
Handgun 200 +100 10 1,200
SMG 360 +180 10 2,160
Assault Rifle 280 +140 10 1,680
Shotgun 80 +20 10 280
Heavy 12 +3 13 51
Sniper Rifle 48 +12 13 204
Grenade 3 +1 10 13
Backpack 16 +4/+2 13 50
Bank 100 +10/+20 28 500
Lost Loot 5 +1 10 15

Tiny Tina's Wonderlands

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