How deep does a 10mm Auto penetrate Ballistic Gel 10%?

At the muzzle, a representative 10mm Auto load penetrates approximately 790 mm (31.1 inches) into ballistic gel 10%.

What is the impact energy of a 10mm Auto?

This 10mm Auto load carries about 845 joules (623 ft-lb) at the muzzle.

Over-penetrates (31″ vs 18″ FBI maximum)

Penetration depth

790 mm (31.1″)

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 790 mm (31.1 inches) into ballistic gel 10%.

10% ordnance gelatin is the FBI reference medium; 12–18 in (305–457 mm) is the accepted penetration window.