How deep does a .223 Remington penetrate Kevlar NIJ III?

At the muzzle, a representative .223 Remington load penetrates approximately 14 mm (0.6 inches) into kevlar nij iii.

What is the impact energy of a .223 Remington?

This .223 Remington load carries about 1764 joules (1301 ft-lb) at the muzzle.

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Will a .223 Remington Penetrate Kevlar NIJ III?

Yes — defeats a 5 mm kevlar nij iii barrier

Penetration depth

14 mm (0.6″)

Impact velocity

990 m/s (3248 fps)

Muzzle energy

1764 J (1301 ft-lb)

Bullet behaviour

Intact

Fired at the muzzle, a representative .223 Remington load (3.6 g, FMJ, 990 m/s) reaches roughly 14 mm (0.6 inches) into kevlar nij iii. That is enough to defeat a typical barrier of this material — treat anything behind it as exposed.

About Kevlar NIJ III

A soft body-armor panel is roughly 5 mm of layered Kevlar.

.223 Remington against other materials

Material	Depth (mm)	Depth (in)
Red Brick	176 mm	6.9″
Concrete	171 mm	6.7″
Tempered Glass	26 mm	1.0″
Steel A36	13 mm	0.5″
Steel AR500	8 mm	0.3″

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Will a .223 Remington Penetrate Kevlar NIJ III?

About Kevlar NIJ III

.223 Remington against other materials

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