I–III++: one-shot kill · IVA+–IV++: not tested
Player tests: one shot point blank to another player's heart (top of the head for helmets).
Penetration tests: GZW Bullet Pen Chart (AstroPolski and contributors), v0.4
5.56x45mm AP (M995)(this page)Gunny · rank 4Stopped by armor class IV
5.56x45mm AP (M855A1)Gunny · rank 3Stopped by armor class III++
5.56x45mm Tracer (M856A1)Gunny · rank 3Stopped by armor class III++
5.56x45mm AP (M855)Gunny · rank 2Stopped by armor class III+
5.56x45mm Tracer (M856)Gunny · rank 2Stopped by armor class III+
5.56x45mm M193Gunny · rank 2Stopped by armor class III
5.56x45mm FMJGunny · rank 1Stopped by armor class III
5.56x45mm HPBTGunny · rank 2Stopped by armor class IIIA+
5.56x45mm SPGunny · rank 1Stopped by armor class I
