How deep does a 9mm Luger penetrate Drywall (Gypsum)?

At the muzzle, a representative 9mm Luger load penetrates approximately 317 mm (12.5 inches) into drywall (gypsum).

What is the impact energy of a 9mm Luger?

This 9mm Luger load carries about 518 joules (382 ft-lb) at the muzzle.

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Will a 9mm Luger Penetrate Drywall (Gypsum)?

Yes — defeats a 13 mm drywall (gypsum) barrier

Penetration depth

317 mm (12.5″)

Impact velocity

360 m/s (1181 fps)

Muzzle energy

518 J (382 ft-lb)

Bullet behaviour

Intact

Fired at the muzzle, a representative 9mm Luger load (8 g, FMJ, 360 m/s) reaches roughly 317 mm (12.5 inches) into drywall (gypsum). That is enough to defeat a typical barrier of this material — treat anything behind it as exposed.

About Drywall (Gypsum)

One sheet of interior drywall is ~13 mm; a wall is two sheets and a gap.

9mm Luger against other materials

Material	Depth (mm)	Depth (in)
Red Brick	70 mm	2.7″
Concrete	38 mm	1.5″
Tempered Glass	16 mm	0.6″
Steel A36	3 mm	0.1″
Steel AR500	1 mm	0.0″

Run your own numbers in the calculator →

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Will a 9mm Luger Penetrate Drywall (Gypsum)?

About Drywall (Gypsum)

9mm Luger against other materials

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