MIL-DTL-32505
APPENDIX B
TABLE B-I. Minimum required ballistic limits - caliber .30 AP
M2 projectiles at 30° 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
0.475
1448
TBD
0.580
1662
TBD
0.685
1865
TBD
0.480
1459
TBD
0.585
1672
TBD
0.690
1874
TBD
0.485
1469
TBD
0.590
1682
TBD
0.695
1883
TBD
0.490
1480
TBD
0.595
1692
TBD
0.700
1893
TBD
0.495
1490
TBD
0.600
1702
TBD
0.705
1902
TBD
0.500 1/
1500
TBD
0.605
1711
TBD
0.710
1911
TBD
0.505
1511
TBD
0.610
1721
TBD
0.715
1921
TBD
0.510
1521
TBD
0.615
1731
TBD
0.720
1930
TBD
0.515
1531
TBD
0.620
1741
TBD
0.725
1939
TBD
0.520
1541
TBD
0.625
1750
TBD
0.730
1948
TBD
0.525
1552
TBD
0.630
1760
TBD
0.735
1958
TBD
0.530
1562
TBD
0.635
1770
TBD
0.740
1967
TBD
0.535
1572
TBD
0.640
1779
TBD
0.745
1976
TBD
0.749 2/
0.540
1582
TBD
0.645
1789
TBD
1983
TBD
0.545
1592
TBD
0.650
1798
TBD
0.755
1994
TBD
0.550
1602
TBD
0.655
1808
TBD
0.760
2003
TBD
0.555
1612
TBD
0.660
1817
TBD
0.765
2012
TBD
0.560
1622
TBD
0.665
1827
TBD
0.770
2022
TBD
0.565
1632
TBD
0.670
1836
TBD
0.775
2031
TBD
0.570
1642
TBD
0.675
1846
TBD
0.780
2040
TBD
0.575
1652
TBD
0.680
1855
TBD
0.785
2049
TBD
1/
Specification requirements begin for this ordered thickness.
2/
Specification requirements end 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.
18
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