Will a 10mm Auto Penetrate Compacted Earth?

No — stops inside compacted earth (reaches 179 mm of a 200 mm barrier)
Penetration depth
179 mm (7.1″)
Impact velocity
380 m/s (1247 fps)
Muzzle energy
845 J (623 ft-lb)
Bullet behaviour
Intact

Fired at the muzzle, a representative 10mm Auto load (11.7 g, FMJ, 380 m/s) reaches roughly 179 mm (7.1 inches) into compacted earth. It loses its energy before defeating a typical barrier of this material.

About Compacted Earth

Compacted earth (~200 mm), as in a backstop berm.

10mm Auto against other materials

MaterialDepth (mm)Depth (in)
Red Brick86 mm3.4″
Concrete47 mm1.8″
Tempered Glass19 mm0.7″
Steel A364 mm0.2″
Steel AR5001 mm0.0″
Run your own numbers in the calculator →

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