N.I.J. STANDARD 0108.01

Level
Type of Weapon
Caliber
Ammunition
I .22 LR Handgun .22 LR LRHV
.38 Special .38 Sp RN Lead
IIA .357 Magnum .357 Magnum JSP 158 gr
9 mm Handgun 9 mm x 19 FMJ 124 gr
II .357 Magnum .357 Magnum HV/JSP 158gr
9 mm Handgun 9 mm x 19 HV/FMJ 124gr
IIIA .44 MG Handgun .44 Magnum Lead GC 240gr
9 mm S.M.G. 9 mm x 19 FMJ 124gr
III 7.62 or .308 Rifle 7.62mm x 15 .308 FMJ 150gr
IV M14 7.62mm x 63 AP 30.06

Abbreviations:

AP:
Armor Piercing
LRHV:
Long Rifle High Velocity
FMJ:
Full Metal Jacketed
RN:
Round Nose
JSP:
Jacketed Soft Point
SWC:
Semi-Wad cutter