MIL-DTL-32505
APPENDIX B
TABLE B-IV. Minimum required ballistic limits - caliber .30 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
0.730
1732
TBD
0.900
1969
TBD
1.070
2189
TBD
0.735
1739
TBD
0.905
1976
TBD
1.075
2196
TBD
0.740
1746
TBD
0.910
1982
TBD
1.080
2202
TBD
0.745
1754
TBD
0.915
1989
TBD
1.085
2208
TBD
0.750 1/
1761
TBD
0.920
1996
TBD
1.090
2214
TBD
0.755
1768
TBD
0.925
2002
TBD
1.095
2221
TBD
0.760
1775
TBD
0.930
2009
TBD
1.100
2227
TBD
0.765
1782
TBD
0.935
2016
TBD
1.105
2233
TBD
0.770
1789
TBD
0.940
2022
TBD
1.110
2239
TBD
0.775
1796
TBD
0.945
2029
TBD
1.115
2245
TBD
0.780
1804
TBD
0.950
2037
TBD
1.120
2252
TBD
0.785
1811
TBD
0.955
2042
TBD
1.125
2258
TBD
0.790
1818
TBD
0.960
2048
TBD
1.130
2264
TBD
0.795
1825
TBD
0.965
2055
TBD
1.135
2270
TBD
0.800
1832
TBD
0.970
2062
TBD
1.140
2276
TBD
0.805
1839
TBD
0.975
2068
TBD
1.145
2282
TBD
0.810
1846
TBD
0.980
2075
TBD
1.150
2288
TBD
0.815
1853
TBD
0.985
2081
TBD
1.155
2294
TBD
0.820
1860
TBD
0.990
2087
TBD
1.160
2301
TBD
0.825
1867
TBD
0.995
2094
TBD
1.165
2307
TBD
0.830
1874
TBD
1.000
2100
TBD
1.170
2313
TBD
0.835
1881
TBD
1.005
2107
TBD
1.175
2319
TBD
0.840
1887
TBD
1.010
2113
TBD
1.180
2325
TBD
0.845
1894
TBD
1.015
2120
TBD
1.185
2331
TBD
0.850
1901
TBD
1.020
2126
TBD
1.190
2337
TBD
0.855
1908
TBD
1.025
2132
TBD
1.195
2343
TBD
0.860
1915
TBD
1.030
2139
TBD
1.200
2349
TBD
0.865
1922
TBD
1.035
2145
TBD
1.205
2355
TBD
0.870
1928
TBD
1.040
2152
TBD
1.210
2361
TBD
0.875
1935
TBD
1.045
2158
TBD
1.215
2367
TBD
0.880
1942
TBD
1.050
2164
TBD
1.220
2373
TBD
0.885
1949
TBD
1.055
2171
TBD
1.225
2379
TBD
0.890
1956
TBD
1.060
2177
TBD
1.230
2385
TBD
0.895
1962
TBD
1.065
2183
TBD
1.235
2391
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.
22
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