Will a .22 LR Penetrate Steel A36?

No — stops inside steel a36 (reaches 2 mm of a 6 mm barrier)
Penetration depth
2 mm (0.1″)
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 2 mm (0.1 inches) into steel a36. It loses its energy before defeating a typical barrier of this material.

About Steel A36

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

.22 LR against other materials

MaterialDepth (mm)Depth (in)
Red Brick49 mm1.9″
Concrete26 mm1.0″
Tempered Glass11 mm0.4″
Steel AR5001 mm0.0″
Aluminum 60617 mm0.3″
Run your own numbers in the calculator →

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