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High Caliber is an attachment featured in Call of Duty: Black Ops III, Call of Duty: WWII, and Call of Duty: Black Ops 4 that increases headshot damage.

Call of Duty: Black Ops IIIEdit

High Caliber menu icon BO3
High Caliber
Unlocked Weapon level 7 (ARs/Handguns)
Used by All teams
Console codename(s) +damage

It can only be attached on Pistols or Assault Rifles, and increases the headshot damage multiplier of any gun it's attached to from 1.1 to 1.5, except on the Sheiva and MX Garand.

These two weapons are two of the guns that get the most benefit from the attachment, as it changes the guns from a two shot kill to a one shot headshot. This is achieved thanks to the unique increase both weapons gain, a 1.8 headshot multiplier (if they got a 1.5 multiplier, the attachment would make no difference).

It is a more effective attachment for Burst Fire and high-recoil weapons. Burst fire weapons greatly benefit if any of the three or four rounds hit the head of the opponent, and high-recoil weapons will direct their rounds upwards and towards the head, meaning the last of the shots fired are more likely to guarantee a kill.

Call of Duty: WWIIEdit

High Caliber menu icon WWII
High Caliber
Used by All teams
"Increases head shot damage."
— Description

High Caliber returns in Call of Duty: WWII, performing similarly if not identically to its Black Ops III iteration. It should be avoided on the M1 Garand, SVT-40 and M1911, as they only benefit form it in at furthor, less effective ranges outside of the guns' 2-shot kill range, making Advanced Rifling a better choice. It also has no effect on the M1941's 5-shot kill range.

Call of Duty: Black Ops 4Edit

"Increased damage to the head and upper chest."
— Description

High Caliber returns in Call of Duty: Black Ops 4, where it raises the headshot damage multiplier to 1.5x as seen in past games. High Caliber is available on most assault rifles, sniper rifles, and pistols. Equipping High Caliber also gives the player the option to equip a variant known as High Caliber II, which increases damage to the upper chest, and to the torso on sniper rifles only.

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