MIL-DTL-48623A (AR)
a. Gun, Machine, Cal .50, Browning, M2, Heavy Barrel (Turret type) Fire
in bursts of 100 cartridges.
b. Gun, Machine, Cal .50, Browning, M2, Heavy Barrel (Flexible) Fire in
bursts of 100 cartridges
0°F ± 2°F
125°F ± 2°F
AMBIENT
No. of Cartridges
300
300
300
NOTE: Cartridges for high and low temperature tests shall be conditioned at specified
temperatures for a minimum of four hours and fired at that temperature.
4.5.6 Cycle rate. The test shall be conducted in accordance with SCATP-7.62mm
Chapter 2, Function and Casualty Test.
4.5.7 Noise level. The Noise test will be conducted in accordance SCATP-
7.62mm Chapter 2, Noise Level Test. Testing will be conducted in an area free of any
sound-reflecting surfaces within 15 meters. Fire ten, ten round bursts of test cartridges
placing the microphone of the noise level meter approximately .5 meters directly behind
the weapon. For each round, an average from all ten round bursts averages will be
observed for analysis. Sound measurements ITOP 1-2-608 shall be used.
4.5.8 Waterproof. The cartridges shall be submerged in water in accordance with
SCATP-7.62mm Chapter 1, Waterproof Test. The number of bubbles liberated from the
mouth of primer of each cartridge shall be observed. Vacuum Lead Tester Dwg.
10534010 shall be used.
4.5.9 Workmanship. Visually verify that all parts and assemblies meet
requirements of paragraph 3.13.
4.5.10 Ammunition lot numbering. Visually verify that an ammunition lot number
has been applied to each lot as described in MIL-STD-1168.
4.5.11 Mixed Ammunition. Immediately prior to the packaging operation, 100
percent examination of the cartridges shall be performed to ascertain that the cartridge
type conforms to the drawing. Occurrence of a high pressure test, dummy, grenade trace
or overhead fire trace cartridges shall be classed as a critical defect. Occurrence of any
other incorrect type shall be classed a major defect. All non-conforming cartridges shall
be rejected.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as
specified in the contract or order (see 6.2). When packaging of materiel is to be
performed by DOD or in-house contractor personnel, these personnel need to contact the
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