How deep does a .22 LR penetrate Tempered Glass?

At the muzzle, a representative .22 LR load penetrates approximately 11 mm (0.4 inches) into tempered glass.

What is the impact energy of a .22 LR?

This .22 LR load carries about 142 joules (104 ft-lb) at the muzzle.

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Will a .22 LR Penetrate Tempered Glass?

Yes — defeats a 6 mm tempered glass barrier

Penetration depth

11 mm (0.4″)

Impact velocity

330 m/s (1083 fps)

Muzzle energy

142 J (104 ft-lb)

Bullet behaviour

Intact

Fired at the muzzle, a representative .22 LR load (2.6 g, FMJ, 330 m/s) reaches roughly 11 mm (0.4 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.

.22 LR against other materials

Material	Depth (mm)	Depth (in)
Red Brick	49 mm	1.9″
Concrete	26 mm	1.0″
Steel A36	2 mm	0.1″
Steel AR500	1 mm	0.0″
Aluminum 6061	7 mm	0.3″

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.22 LR vs Red Brick .22 LR vs Concrete .22 LR vs Steel A36 .22 LR vs Steel AR500 .22 LR vs Aluminum 6061 .22 LR vs Pine Wood .22 LR vs Oak Wood .22 LR vs Kevlar NIJ III 9mm Luger vs Tempered Glass .45 ACP vs Tempered Glass .40 S&W vs Tempered Glass .380 ACP vs Tempered Glass .357 Magnum vs Tempered Glass .44 Magnum vs Tempered Glass 10mm Auto vs Tempered Glass 5.56 NATO vs Tempered Glass

Will a .22 LR Penetrate Tempered Glass?

About Tempered Glass

.22 LR against other materials

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