MIL-DTL-32505
APPENDIX B
TABLE B-V. Minimum required ballistic limits - caliber .50 AP
M2 projectiles at 0° obliquity.
Required
Required
Required
Thickness,
Thickness,
Thickness,
BL(P), fps
BL(P), fps
BL(P), fps
inches
inches
inches
Class I Class II
Class I Class II
Class I Class II
1.480
2000
TBD
1.655
2135
TBD
1.830
2264
TBD
1.485
2004
TBD
1.660
2139
TBD
1.835
2268
TBD
1.490
2008
TBD
1.665
2142
TBD
1.840
2272
TBD
1.495
2012
TBD
1.670
2146
TBD
1.845
2275
TBD
1.501 1/
2016
TBD
1.675
2150
TBD
1.850
2279
TBD
1.505
2019
TBD
1.680
2154
TBD
1.855
2282
TBD
1.510
2023
TBD
1.685
2158
TBD
1.860
2286
TBD
1.515
2027
TBD
1.690
2161
TBD
1.865
2290
TBD
1.520
2031
TBD
1.695
2165
TBD
1.870
2293
TBD
1.525
2035
TBD
1.700
2169
TBD
1.875
2297
TBD
1.530
2039
TBD
1.705
2172
TBD
1.880
2300
TBD
1.535
2043
TBD
1.710
2176
TBD
1.885
2304
TBD
1.540
2047
TBD
1.715
2180
TBD
1.890
2308
TBD
1.545
2051
TBD
1.720
2184
TBD
1.895
2311
TBD
1.550
2055
TBD
1.725
2187
TBD
1.900
2315
TBD
1.555
2058
TBD
1.730
2191
TBD
1.905
2318
TBD
1.560
2062
TBD
1.735
2195
TBD
1.910
2322
TBD
1.565
2066
TBD
1.740
2198
TBD
1.915
2325
TBD
1.570
2070
TBD
1.745
2202
TBD
1.920
2329
TBD
1.575
2074
TBD
1.750
2206
TBD
1.925
2333
TBD
1.580
2078
TBD
1.755
2210
TBD
1.930
2336
TBD
1.585
2082
TBD
1.760
2213
TBD
1.935
2340
TBD
1.590
2085
TBD
1.765
2217
TBD
1.940
2343
TBD
1.595
2089
TBD
1.770
2221
TBD
1.945
2347
TBD
1.600
2093
TBD
1.775
2224
TBD
1.950
2350
TBD
1.605
2097
TBD
1.780
2228
TBD
1.955
2354
TBD
1.610
2101
TBD
1.785
2232
TBD
1.960
2357
TBD
1.615
2105
TBD
1.790
2235
TBD
1.965
2361
TBD
1.620
2108
TBD
1.795
2239
TBD
1.970
2364
TBD
1.625
2112
TBD
1.800
2243
TBD
1.975
2368
TBD
1.630
2116
TBD
1.805
2246
TBD
1.980
2371
TBD
1.635
2120
TBD
1.810
2250
TBD
1.985
2375
TBD
1.640
2124
TBD
1.815
2253
TBD
1.990
2378
TBD
1.645
2127
TBD
1.820
2257
TBD
1.995
2382
TBD
1.650
2131
TBD
1.825
2261
TBD
2.000
2385
TBD
1/
Specification requirements begin for this ordered thickness.
Note: Tabulated values on either side of the ordered thicknesses are for interpolation
of BL(P) requirements on undersize or oversize plates.
24
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