How deep does a .380 ACP penetrate Tempered Glass?

At the muzzle, a representative .380 ACP load penetrates approximately 8 mm (0.3 inches) into tempered glass.

What is the impact energy of a .380 ACP?

This .380 ACP load carries about 261 joules (192 ft-lb) at the muzzle.

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Will a .380 ACP Penetrate Tempered Glass?

Yes — defeats a 6 mm tempered glass barrier

Penetration depth

8 mm (0.3″)

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 8 mm (0.3 inches) into tempered glass. That is enough to defeat a typical barrier of this material — treat anything behind it as exposed.

About Tempered Glass

Tempered and automotive glass runs about 6 mm thick.

.380 ACP against other materials

Material	Depth (mm)	Depth (in)
Red Brick	38 mm	1.5″
Concrete	20 mm	0.8″
Steel A36	1 mm	0.0″
Steel AR500	1 mm	0.0″
Aluminum 6061	5 mm	0.2″

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Will a .380 ACP Penetrate Tempered Glass?

About Tempered Glass

.380 ACP against other materials

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