Bullet Caliber and Penetration Levels

Understanding how each bullet caliber has different penetration levels is essential for deciding what level of bulletproofing protection you want to achieve.

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Bullet Caliber and Penetration Levels

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What ammo should be used for submachine guns? Won't they be ineffective because of low armor penetration? Or am I missing something? : r/EscapefromTarkov

Bullet Sizes, Calibres, and Types