MIL-PRF-70775B (AR)
3.5.5 Ballistic match. The cartridge shall have a projectile trajectory within 1.0 mil of the
CARTRIDGE, 25MM: armor piercing discarding sabot with trace (APDS-T), M791 cartridge trajectory
throughout a range of 2000 meters (see 6.14). In addition, the average muzzle velocity minus 2.0 standard
deviations shall be no less than the minimum allowed velocity to achieve the ballistic match when the
cartridge is conditioned at 21°C and the velocity standard deviation of the sample shall not exceed 13
meters per second (mps) (see 6.13).
3.5.6 Time of flight. The cartridge shall have a projectile trajectory time of flight within 0.5
second of the M791 APDS-T cartridge trajectory time of flight throughout a range of 2000 meters (see
6.14).
3.5.7 Surface danger zone. The cartridge shall comply with the M910 surface danger zone stated
in DA PAM 385-63.
3.5.8 Projectile trace. The projectile shall provide a continuous visible trace (both thermal and
spectral) from the muzzle of the weapon to a range of at least 2000 meters when viewed through the
Bradley Fighting Vehicle System (BFVS) Integrated Sight Unit (ISU) or IBAS.
3.5.9 Smoke. Any smoke produced from firing the M910 shall not impede the shooter's vision
from the gun position after firing a 10-round burst from the M242 autogun.
3.5.10 Flash. The cartridge shall not exhibit any secondary muzzle flash that exceeds the
following: a brightness of 6,000 candles or a duration of 3 milliseconds. The cartridge shall not exhibit
any breech flash.
3.5.11 Cook off. The cartridge shall not cook off when left chambered in a hot gun tube for 30
minutes.
3.6 Environmental requirements.
3.6.1 Waterproofness. The cartridge shall not allow water entry into the cartridge case.
3.6.2 Ruggedness. The cartridge shall withstand the rigors of transportation and rough handling.
3.6.3 Salt fog. The cartridge shall show no evidence of degradation or corrosion after exposure to
the salt fog environment.
3.6.4 Humidity. The cartridge shall show no evidence of degradation or corrosion after being
subjected to the humidity environment.
3.6.5 Extreme temperature/long term storage. The cartridge shall show no evidence of
degradation after being subjected to the extreme temperature/long term storage environment.
3.7 Support and ownership.
3.7.1 Final hazard classification. The cartridge shall comply with the following hazard
classification when packaged in accordance with the requirements of the contract:
DOD Hazard Class/Div/SCG:
1.2.2C
DOT Hazard Class:
1.2C
UN Serial Number:
0328
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