Will a .380 ACP Penetrate Oak Wood?

Yes — defeats a 40 mm oak wood barrier
Penetration depth
44 mm (1.7″)
Impact velocity
290 m/s (951 fps)
Muzzle energy
261 J (192 ft-lb)
Bullet behaviour
Intact

Fired at the muzzle, a representative .380 ACP load (6.2 g, FMJ, 290 m/s) reaches roughly 44 mm (1.7 inches) into oak wood. That is enough to defeat a typical barrier of this material — treat anything behind it as exposed.

About Oak Wood

Oak hardwood (~40 mm), denser than construction softwood.

.380 ACP against other materials

MaterialDepth (mm)Depth (in)
Red Brick38 mm1.5″
Concrete20 mm0.8″
Tempered Glass8 mm0.3″
Steel A361 mm0.0″
Steel AR5001 mm0.0″
Run your own numbers in the calculator →

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