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Page Title:
Table A-XI. Minimum required ballistic limits (protection criteria), firing obliquity: 0, projectile: caliber .50 M2 AP. |
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|  MIL-A-12560H (MR)
w/INT. AMENDMENT 4
APPENDIX A
TABLE A-XI. Minimum required ballistic limits (protection criteria), firing obliquity: 0,
projectile: caliber .50 M2 AP.
Thickness,
Required
Thickness,
Required
Thickness,
Required
inches
BL(P), ft/sec
inches
BL(P), ft/sec
inches
BL(P), ft/sec
0.550
1901
0.765
2305
0.985
2658
0.555
1911
0.770
2314
0.990
2665
0.560
1922
0.775
2322
0.995
2673
0.565
1932
0.780
2331
1.000
2680
1/ 0.566
1934
0.785
2339
1.005
2688
0.570
1942
0.790
2348
1.010
2695
0.575
1952
0.795
2356
1.015
2702
0.580
1962
0.800
2365
1.020
2710
0.585
1972
0.805
2373
1.025
2717
0.590
1982
0.810
2382
1.030
2724
0.595
1992
0.815
2390
1.035
2732
0.600
2002
0.820
2398
1.040
2739
0.605
2012
0.825
2406
1.045
2746
0.610
2022
0.830
2415
1.050
2754
0.615
2031
0.835
2423
1.055
2761
0.620
2041
0.840
2431
1.060
2768
0.625
2051
0.845
2439
1.065
2775
0.630
2060
0.850
2447
1.070
2782
0.635
2070
0.855
2455
1.075
2790
0.640
2079
0.860
2464
1.080
2797
0.645
2089
0.865
2472
1.085
2804
0.650
2098
0.870
2480
1.090
2811
0.655
2108
0.875
2488
1.095
2818
0.660
2117
0.880
2496
1.100
2825
0.665
2126
0.885
2504
1.105
2832
0.670
2136
0.890
2511
1.110
2839
0.675
2145
0.895
2519
1.115
2846
0.680
2154
0.900
2527
1.120
2853
0.685
2163
0.905
2535
2/ 1.125
2860
0.690
2173
0.910
2543
1.130
2867
0.695
2182
0.915
2551
1.135
2874
0.700
2191
0.920
2559
1.140
2881
0.705
2200
0.925
2566
1.145
2888
0.710
2209
0.930
2574
1.150
2895
0.715
2218
0.935
2582
1.155
2902
0.720
2227
0.940
2590
1.160
2909
0.725
2235
0.945
2597
1.165
2915
0.730
2244
0.950
2605
1.170
2922
29
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