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Overview:5.56mm Round

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5.56mm Round is a type of ammunition found in the Fallout Series.

Background[edit]

An average round used in late 20th century by various military rifles including the M-16.[Pub 1][Pub 2] It is described as lightweight and accurate, remaining in production until the Great War.[Pub 3]

List[edit]

Image Name Game
| Fo4 5.56mm round.png 5.56 Round | | Fallout 76

| FoT 556mm ammo.png 5.56mm | | Fallout Tactics

| FO3 Ammo 5.56mm Round.webp 5.56mm Round | | Fallout 3

| Fo4 5.56mm round.png 5.56mm Round | | Fallout 4

| FO3 Ammo 5.56mm Round.webp 5.56mm Round | | Fallout: New Vegas

References[edit]

Publications
  1. Vault Dweller's Survival Guide p. 5-17: "Rifle caliber ammunition. The FMJ stands for Full-Metal Jacket, which describes the bullet that is used in the round of ammo. A FMJ bullet is very tough, and has pretty good penetration without sacrificing good expansion. In other words, it‘s an average round."
  2. Fallout Official Survival Guide p. 119: ".223 Full Metal Jacket (FMJ): This is the same ammo used in the late 20th century by various military rifles, including the M-16. A good, basic, hard-hitting round."
  3. Fallout: The Roleplaying Game Core Rulebook p. 93: "A lightweight, Accurate rifle round normally used in assault rifles. Developed centuries ago for the U.S. Army’s standard rifle of the era, 5.56mm rounds remained in production and use right up until the end of the Great War, and if you know where to look they’re easy enough to find."