MIL-DTL-45225F(MR)
Minimum ballistic limits (protection at 0o obliquity) for
TABLE VIII.
type I, class A material using caliber .50 AP, M2
projectile (cont'd).1/
Thickness,
Required
Thickness,
Required
Thickness,
Required
inches
BL(P)fps
inches
BL(P)fps
inches
BL(P)fps
2.915
2479
2.980
2514
3.045
2550
2.920
2481
2.985
2317
3.050
2553
2.925
2484
2.990
2520
3.055
2556
2.930
2487
2.995
2523
3.060
2558
4/ 3.000
2.935
2490
2525
3.065
2561
2.940
2492
3.005
2528
3.070
2564
2.945
2495
3.010
2531
3.075
2567
2.950
2498
3.015
2534
3.080
2569
2.955
2501
3.020
2536
3.085
2572
2.960
2503
3.025
2539
3.090
2575
2.965
2506
3.030
2542
3.095
2578
2.970
2509
3.035
2545
3.100
2580
2.975
2512
3.040
2547
_________________________________________________________________________________
1/ AP, M2 denotes armor piercing model 2 projectile.
2/
Spec. requirements for this test start at ordered thickness 1.701 inches.
3/
Ballistic limit requirements have not been developed over this 0.145 inch
thickness range of 2.300 inches to 2.445 inches.
4/
Spec. requirements for this test end at ordered thickness 3.000 inches.
18
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