MIL-DTL-46083D(MR)
APPENDIX A
TABLE A-VI.
Minimum required ballistic limits for class II 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
0.920
1906
1.125
2153
1.330
2376
0.925
1912
1.130
2159
1.335
2382
0.930
1919
1.135
2165
1.340
2387
0.935
1925
1.140
2170
1.345
2392
0.940
1931
1.145
2176
1.350
2397
0.945
1938
1.150
2182
1.355
2402
1/0.950
1944
1.155
2187
1.360
2407
0.955
1950
1.160
2193
1.365
2412
0.960
1957
1.165
2199
1.370
2418
0.965
1963
1.170
2204
1.375
2423
0.970
1969
1.175
2210
1.380
2428
0.975
1975
1.180
2215
1.385
2433
0.980
1981
1.185
2221
1.390
2438
0.985
1988
1.190
2226
1.395
2443
0.990
1994
1.195
2232
1.400
2448
0.995
2000
1.200
2237
1.405
2453
1.000
2006
1.205
2243
1.410
2458
1.005
2012
1.210
2248
1.415
2463
1.010
2018
1.215
2254
1.420
2468
1.015
2024
1.220
2259
1.425
2473
1.020
2030
1.225
2265
1.430
2478
1.025
2036
1.230
2270
1.435
2483
1.030
2042
1.235
2276
1.440
2488
1.035
2048
1.240
2281
1.445
2493
1.040
2054
1.245
2286
1.450
2498
1.045
2060
1.250
2292
1.455
2503
1.050
2066
1.255
2297
1.460
2508
1.055
2072
1.260
2303
1.465
2513
1.060
2078
1.265
2308
1.470
2518
1.065
2084
1.270
2313
1.475
2523
1.070
2090
1.275
2319
1.480
2528
1.075
2096
1.280
2324
1.485
2533
1.080
2101
1.285
2329
1.490
2537
1.085
2107
1.290
2334
1.495
2542
2/1.500
1.090
2113
1.295
2340
2547
1.095
2119
1.300
2345
1.505
2552
1.100
2125
1.305
2350
1.510
2557
1.105
2130
1.310
2355
1.515
2562
1.110
2136
1.315
2361
1.520
2567
1.115
2142
1.320
2366
1.525
2570
1.120
2148
1.325
2371
1.530
2576
________________________________________________________________________________
1/
Specification requirements begin with 0.951 inch ordered thickness.
Required BL(P) = 1190 fps.
2/
Specification requirements end with this ordered thickness.
Note:
Tabulated values on either side of the specification requirements are
for interpolation of BL(P) requirements on undersize or oversize plates.
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