NIJ Testing Standards: What and Why | Propper
Aug 09, 2019· Soft armor offers two levels of protection: Level II and IIIA. Each is designed to absorb rounds up to a certain caliber and velocity. In the NIJ’s testing, six shots of two different calibers are shot at the armor to gauge its effectiveness: Level II. 9mm FMJ, 124gr at 1305 ft/s.357 Magnum JSP 158 gr at 1430 ft/s; Level IIIA