The chart below summarizes the standards used to certify body armor performance against varying levels of threats. It can serve as a basic guide to help you determine the level of protection you require.

Armor Type Test Ammunition Nominal Bullet Mass Suggested Barrel Length Required Bullet Velocity
I 22 LRHV
LEAD
38 Special
RN Lead
2.6 g
40 gr
10.2 g
158 gr
15 to 16.5 cm
6 to 6.5 in
15 to 16.5 cm
6 to 6.5 in
320 ± 12 m/s
1050 ± 40 ft/s
259 ± 15 m/s
850 ± 50 ft/s
II-A 357 Magnum
JSP
9 mm
FMJ
10.2 g
158 gr
8.0 g
124 gr
10 to 12 cm
4 to 4.75 in
10 to 12 cm
4 to 4.75 in
381 ± 15 m/s
1250 ± 50 ft/s
332 ± 12 m/s
1090 ± 40 ft/s
II 357 Magnum
JSP
9 mm
FMJ
10.2g
158 gr
8.0 g
124 gr
15 to 16.5 cm
6 to 6.5 in
10 to 12 cm
4 to 4.75 in
425 ± 15 m/s
1395 ± 50 ft/s
358 ± 12 m/s
1175 ± 40 ft/s
III-A 44 Magnum
Lead SWC Gas
Checked
9 mm
FMJ
15.55 g
240 gr
8.0 g
124 gr
14 to 16 cm
5.5 to 6.25 in
24 to 26 cm
9.5 to 10.25 in
426 ± 15 m/s
1400 ± 50 ft/s
426 ± 15 m/s
1400 ± 50 ft/s
III 7.62 mm
308 Winchester
FMJ
9.7 g
150 gr
56 cm
22 in
838 ± 15 m/s
2750 ± 50 ft/s
IV 30-06
AP
10.8 g
166 gr
56 cm
22 in
2850 ± 50 ft/s
AP: Armor Piercing
FMJ: Full Metal Jacket
JSP: Jacketed Soft Point
LRHV: Long Rifle High Velocity
RN: Round Nose
SWC: Semi-Wadcutter
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