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|  MIL-C-70725A (AR)
d. The dispersion test may be conducted concurrently
with the matching test. The targets fired in the dispersion test
can also be used as the test targets in the matching test.
4.6.7.1 Accuracy match . The test shall be conducted in
accordance with SCATP-5.56mm, Heavy Bullet, Section 11, with the
following amendments:
a. The matching
test will be conducted to ensure that
the trajectory of the test
cartridges at 25 meters will resemble
the trajectory of the M193
cartridge when fired in the M16A1, and
the M855 when fired in the
M16A2.
b. The test will require the use of 1 in 12-inch
twist barrels when testing for match with M193 ammunition, and 1
in 7-inch twist barrels when testing for match with M855 ammuni-
tion. For both qualification and first article tests, three
barrels of each type shall be used.
c. The target for this test shall be located 25
meters from the muzzle of the weapon.
d. The test shall be conducted by comparing reference
targets of M193 and M855 ammunition to targets fired with the
test cartridges. The mean center of impact of the ten (10) round
reference targets shall be compared to the mean center of impact
of the ten (10) round test targets for each barrel (the average
of the results in each barrel type shall be compared to the
So the center of impacts of the 10 round targets
requirement).
can be averaged, the targets shall be mounted and clearly marked
against common reference points, such as marks on the target
holding stand. This will assure consistency in the location of
all targets.
e. The matching test may be conducted concurrently
with the dispersion test. The test targets fired in the matching
test may also be measured for mean radius, and the results used
for the dispersion test.
4.6.8 Function and casualty. Function and casualty and the
following tests shall be conducted in accordance with Appendix C:
Cyclic Rate, Bullet Integrity, Breech Flash, Fouling Cyclic Rate
and Cartridge Ejection.
4.6.8.1 Function and casualty acceptance criteria for
qualification. In view of the expenses associated with firing
function and casualty tests with both ammunition and weapons
temperature conditioned, the following shall be employed:
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