While that might seem very straight-forward, Escape of Tarkov features many (and we mean many) different types of 556 and 762 ammo. The two guns in the image below cannot use the same type of ammo since one uses 556 and the other uses 762.
While the weapons you carry are pretty relevant for your playstyle and the opportunities. Thanks to its design, the bullet in this cartridge is capable of piercing through basic ballistic protection equipment, as well as certain intermediate protection equipment, however, it has a high probability of rebound on various surfaces. The caliber is important because it determines what type of ammo your gun will use. Ammo is perhaps the most important resource in Escape from Tarkov.
This cartridge was designed in the 1980s as the equivalent to the FN SS109 cartridge for the 5.56x45mm NATO caliber armament used by the United States Army. 5.56x45mm M855 (M855) is a 5.56x45mm ammunition type in Escape from Tarkov.Ī 5.56x45mm NATO M855 cartridge with a 4 gram bullet with a steel penetrator tip over a lead core with a copper jacket in a brass case.