BALLISTICENGINE

Will a .308 Winchester Penetrate Steel A36?

Yes — defeats a 6 mm steel a36 barrier

Fired at the muzzle, a representative .308 Winchester load (9.5 g, FMJ, 840 m/s) reaches roughly 17 mm (0.7 inches) into steel a36. That is enough to defeat a typical barrier of this material — treat anything behind it as exposed.

About Steel A36

Mild structural steel plate (~6 mm); car bodies are far thinner (~1 mm).

.308 Winchester against other materials

Material	Depth (mm)	Depth (in)
Red Brick	239 mm	9.4″
Concrete	199 mm	7.8″
Tempered Glass	36 mm	1.4″
Steel AR500	8 mm	0.3″
Aluminum 6061	32 mm	1.2″

See exactly what .308 Winchester does to Steel A36 — open in the calculator →

Related