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Ammunition or ammo is the term used for expendable ordnance material used in charging firearms of all kinds; such as powder, balls, shot, shells, percussion caps, rockets, missiles, energy, etc. The purpose of ammunition is to project force against a selected target or area.

All ammo in Fallout 76 has weight, which may be reduced with the appropriate perks. Most ballistic ammo may be reduced by equipping Bandolier, while energy ammo is lighter when using Batteries Included. Explosive ammo, such as missiles, are typically the heaviest ammo available, however, they may be easier to carry with the Ordnance Express perk.

As a player levels, they will progressively gain access to a wider selection of firearms, expanding the types of ammo which may appear in containers or on defeated enemies. However, there are certain types of ammo that will not be randomly available. There is plenty of ammo scattered throughout Appalachia, but if one has the caps and doesn't feel like venturing out to find more, it can be purchased from traders, ammunition vending machines or even other players. Ammo can also be crafted at a tinker's workbench with the appropriate materials.

Most types of ammunition are available as ultracite ammo. These expensive rounds may only be fired from a weapon modified with a prime receiver, but they pack a punch. In addition to increased damage, they deal bonus damage against the Scorched, scorchbeasts and anything affected by the Scorched Plague.


Ballistic ammo
Image Name Applicable Weight Value Form ID
Fo4 .308 round
.308 round 0.006 2 0001F66B
Ultracite .308 round 004709B4
.38 round
.38 round 0.003 1 0004CE87
Ultracite .38 round 004775AF
Fo4 .44 round
.44 round 0.004 3 0009221C
Ultracite .44 round 004709B5
Fo4 .45 round
.45 round 0.003 2 0001F66A
Ultracite .45 round 004709B6
FO76 50 caliber ball
.50 caliber ball 0.1 5 0000796E
Fo4 .50 caliber
.50 round 0.005 5 0001F279
Ultracite .50 round 004709B7
Fo4 10mm round
10mm round 0.005 1 0001F276
Ultracite 10mm round 004709B2
Fo4 5.56mm round
5.56 round 0.005 2 0001F278
Ultracite 5.56 round 004709B8
Fo4 5mm round
5mm round 0.001 1 0001F66C
Ultracite 5mm round 004709B9
Compound bow arrow
Arrow 0.05 2 005A5DD2
Ultracite arrow 005A35B9
Cannonball 1 8 000FD11C
FO76 Crossbow bolt
Crossbow bolt 0.06 8 0032B235
Ultracite crossbow bolt 004709BA
Fo4 flare
Flare 0.1 1 001025AE
Fo4FH harpoon
Harpoon 0.2 1 001109CE
Paddle ball string 0.01 1 001129D0
Fo4 railway spike
Railway spike 0.2 1 000FE269
Ultracite railway spike 004709BF
Fo4 shotgun shell
Shotgun shell 0.006 2 0001F673
Ultracite shotgun shell 004709C0
FO76 Syringer ammo
Syringer ammo 0.005 1 0018506B
Energy ammo
Image Name Applicable Weight Value Form ID
FO76 2mm Electromagnetic cartridge
2mm electromagnetic cartridge 0.025 10 0018ABDF
Ultracite 2mm electromagnetic cartridge 0.050 004709B3
Alien blaster round
Alien blaster round 0.01 1 001025AA
Cryo cell
Cryo cell 0.03 10 0018ABE2
Fo76 fuel
Fuel 0.01 1 000CAC78
Fusion cell
Fusion cell 0.005 3 000C1897
Ultracite fusion cell 004709BB
Fo4 fusion core
Fusion core 3.00 200 00075FE4
Ultracite fusion core 004709BC
Gamma round
Gamma round 0.01 10 000DF279
FO76 plasma cartridge
Plasma cartridge 0.03 5 0001DBB7
Ultracite plasma cartridge 004709BD
Fo4 fusion core
Plasma core 1.00 200 0001EC49
Ultracite plasma core 004709BE
Explosive ammo
Image Name Applicable Weight Value Form ID
FO76 40mm grenade
40mm grenade round 0.2 25 001CF27D
Fo4 mini nuke
Mini nuke 6.00 100 000E6B2E
Fo4 missile
Missile 2.00 25 000CABA3
Image Name Applicable Weight Value Form ID
FO76WA Camera film
Camera film 0.005 1 003F1211



Contextual ammo[]


Weight reduction effects for ammo stack additively, but are limited to -90%.


Update 32:

  • "Ammo: Fixed an issue that could result in less ammo being created than expected when attempting to craft large amounts of high-caliber ammo with the Ammosmith Perk and Ammo Factory Legendary Perk equipped."


  • PCPC Xbox OneXbox One Playstation 4Playstation 4 Cannonballs are erroneously considered ballistic ammo, and their weight is not affected by Ordnance Express. They are used exclusively by the Broadsider, an explosive heavy gun.[verified][1]
  • PCPC Xbox OneXbox One Playstation 4Playstation 4 Although the 2mm electromagnetic cartridges weigh 0.025 each, the ultracite 2mm electromagnetic cartridges weigh 0.050 each.[verified]


  1. [000FD11C] <AmmoCannonBall> has [003896DE] <AmmoTypeBallistic> instead of [003896DF] <AmmoTypeExplosive> and [0043B758] <ObjectTypeOrdnance>
Ammunition in Fallout 76