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|  MIL-C-70725A (AR)
4.5.6 Packaging, packing and marking. Inspection for
packaging, packing and marking shall be in accordance with MIL-
STD-644 as applicable to the drawing or as required by the
contract. During or immediately prior to the packaging
operation, 100 percent examination of the cartridge shall be
performed to ascertain that the cartridge type conforms to the
drawing. All nonconforming cartridges shall be rejected.
4.5.7 Inspection equipment. The contractor shall submit
inspection equipment designs for approval in accordance with
terns of the contract. See Section 6 of MIL-A-48078 and 6.2
herein.
4.6 Methods of inspection. All firings in the M16A1 and
M16A2 rifles shall be performed utilizing a soft mount which
simulates shoulder firing conditions. type AA, 40-pound Kraft,
Type I wrapping paper shall be utilized where witness screens are
specified.
Test in accordance with the
4.6.1 Primer sensitivity.
SCATP.56mm, Chapter 4, Section 1, and TECP-700-700, Vol. III,
Subsection 7-25, utilizing the ball and firing pin identified on
drawings 10520006 and 10524139. The Complete Rundown Test shall
be performed until such time the Government authorizes use of the
2- Height Test (with Complete Rundown Tests performed at some
specified interval).
4.6.2 Residual stress.
4.6.2.1 Cartridges with brass cases. Test in accordance
with SCATP-5.56mm, Chapter 1, Section 8. Prior to testing, all
lubricants and coatings shall be removed from the cartridge case
using solvents or cleaning techniques appropriate to the
particular lubricant or coating being used.
Test in
4.6.2.2 Cartridges with polyethylene cases.
accordance with Appendix B.
Testing not required.
4.6.2.3 Cartridges with steel cases.
4.6.2.4 Cartridges with cases of other materials. Test in
accordance with procedures approved by the Government appropriate
to the material(s) used to manufacture the cartridge.
4.6.3 Bullet extraction. The cartridge shall be tested in
a Government-approved bullet extraction machine in accordance
with SCATP-5.56mm, Chapter 1, Section 5. The rate of travel of
the test machine head shall be from 75 to 150mm per minute.
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