MIL-DTL-46083D(MR)
APPENDIX A
TABLE A-I.
Minimum required ballistic limits for class I armor extrusions
(protection at 0° obliquity) - caliber .30 AP M2 projectile.
_______________________________________________________________________________
Thickness
Required
Thickness
Required
Thickness
Required
Inches
BL(P), fps
Inches
BL(P), fps
Inches
BL(P), fps
0.970
1749
1.185
1991
1.400
2208
0.975
1755
1.190
1997
1.405
2213
0.980
1761
1.195
2002
1.410
2218
0.985
1767
1.200
2007
1.415
2223
0.990
1773
1.205
2012
1.420
2228
0.995
1779
1.210
2018
1.425
2232
1/ 1.000
1784
1.215
2023
1.430
2237
1.005
1790
1.220
2028
1.435
2242
1.010
1796
1.225
2033
1.440
2247
1.015
1802
1.230
2039
1.445
2251
1.020
1808
1.235
2044
1.450
2256
1.025
1814
1.240
2049
1.455
2261
1.030
1819
1.245
2054
1.460
2265
1.035
1825
1.250
2059
1.465
2270
1.040
1831
1.255
2064
1.470
2275
1.045
1837
1.260
2069
1.475
2279
1.050
1843
1.265
2075
1.480
2284
1.055
1848
1.270
2080
1.485
2289
1.060
1854
1.275
2085
1.490
2293
1.065
1860
1.280
2090
1.495
2298
1.070
1865
1.285
2095
1.500
2303
1.075
1871
1.290
2100
1.505
2307
1.080
1877
1.295
2105
1.510
2312
1.085
1882
1.300
2110
1.515
2317
1.090
1888
1.305
2115
1.520
2321
1.095
1893
1.310
2120
1.525
2326
1.100
1899
1.315
2125
1.530
2330
1.105
1904
1.320
2130
1.535
2335
1.110
1910
1.325
2135
1.540
2339
1.115
1916
1.330
2140
1.545
2344
1.120
1921
1.335
2145
1.550
2348
1.125
1927
1.340
2150
1.555
2353
1.130
1932
1.345
2155
1.560
2358
1.135
1937
1.350
2160
1.565
2362
1.140
1943
1.355
2165
1.570
2367
1.145
1948
1.360
2170
1.575
2371
1.150
1954
1.365
2174
1.580
2376
1.155
1959
1.370
2179
1.585
2380
1.160
1965
1.375
2184
1.590
2384
1.165
1970
1.380
2189
1.595
2389
1.170
1975
1.385
2194
1.600
2393
1.175
1981
1.390
2199
1.605
2398
1.180
1986
1.395
2204
1.610
2402
13
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