Ratings of Bullet Resistant materials as identified by National Institute of Justice (NIJ) 0101.06

Threat Level Rating Ammunition Weight (grains) Weight (grams) Min/Max (meters/sec) Min/Max (feet/sec) Number of shots
Level I .22 long rifle high velocity lead 40 2.6 320 +/- 12 1050 +/- 40 5
Level I .38 special round nose lead 158 10.2 259 +/- 15 850 +/- 50 5
Level II .357 mag. jacketed soft point 158 10.2 425 +/- 15 1395 +/- 50 5
Level II 9mm full metal jacket 124 8.0 358 +/- 12 1175 +/- 40 5
Level IIA .357 mag. jacketed soft point 158 10.2 381 +/- 15 1250 +/- 50 5
Level IIA 9mm full metal jacket 124 8.0 332 +/- 12 1090 +/- 40 5
Level III 7.62mm (.308 Winchester) full metal jacket 150 9.7 838 +/- 15 2750 +/- 50 5
Level IIIA .44 mag. lead semi-wadcutter gas checked 240 15.55 426 +/- 15 1400 +/- 50 5
Level IIIA 9 mm full metal jacket 124 8.0 426 +/- 15 1400 +/- 50 5
Level IV .30-06 armor piercing 166 10.8 868 +/- 15 2850 +/- 50 1