How deep does a .45 ACP penetrate Ballistic Gel 10%?

At the muzzle, a representative .45 ACP load penetrates approximately 703 mm (27.7 inches) into ballistic gel 10%.

What is the impact energy of a .45 ACP?

This .45 ACP load carries about 504 joules (371 ft-lb) at the muzzle.

Over-penetrates (28″ vs 18″ FBI maximum)

Penetration depth

703 mm (27.7″)

Impact velocity

260 m/s (853 fps)

Muzzle energy

504 J (371 ft-lb)

Bullet behaviour

Intact

Fired at the muzzle, a representative .45 ACP load (14.9 g, FMJ, 260 m/s) reaches roughly 703 mm (27.7 inches) into ballistic gel 10%.

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