- For the similar attachment, see Ballistics CPU.
The Ballistic Calibration is an attachment featured in Call of Duty: WWII, unlocked by achieving weapon level 2 with sniper rifles. It functions similarly to the Ballistics CPU in previous games as it reduces the idle sway when aiming with a sniper rifle. It does not affect rifles equipped with the 4x Optic or the Iron Sights attachments.
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