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|  MIL-P-71012A(AR)
contractor shall demonstrate that the effectiveness of each
proposed alternative Is equal to or better than the specified
quality assurance provision(s) herein. In cases of dispute as to
whether the contractor's proposed alternative(s) provides
equivalent assurance, the provisions of this specification shall
apply. All approved alternative provisions shall be specifically
incorporated into the contractor's quality program or detailed
inspection system, as applicable.
4.5.4 Inspection equipment. Unless otherwise specified in
the contract, responsibilities for acquisition, maintenance, and
disposltion of all inspection equipment required to perform
inspection prescribed by applicable specifications, shall be in
accordance with MIL-I-45607 and MIL-STD-45662. When automated
inspection equipment is to be used, the provisions of MIL-A-70625
shall apply.
4.6
Methods of inspection.
4.6.1 Headspace test. pistols shall be gaged for headspace
requirement after proof firing, prior to acceptance in accordance
with 3.4.1.
4.6.2 Trigger pull test. The pistol shall be In the uncocked
position and the load shall be gradually applied at the middle of
the trigger bow, exerted in a line parallel to the axis of the
barrel bore. When the minimum load is applied the hammer/striker
shall not fall and when the maximum load is applied the
hammer/striker shall fall. This will simulate first shot firing.
The test shall be repeated with the exception that the
hammer/striker shall be fully cocked. This will simulate the
firing of subsequent rounds. The test shall be repeated using the
same procedure with the exception that the hammer/striker shall be
in the fully cocked position prior to load application.
4.6.3 High-pressure
resistance
(proof-firing)
test.
4.6.3.1 Pistols The pistol shall be tested for high-pressure
resistance requirement by being subjected to the firing of one
Government standard M905 high-pressure test cartridge. Proof
firing shall be accomplished with the pistol held in a contractor
test fixture having a protective shield (it may be remotely
fired). After proof firing the pistol shall be visually examined
for evidence of damage, and cartridge cases shall be visually
examined for bulges, splits, rings, and other defects caused by
defective barrels. In addition, after proof firing, the barrel,
slide and any other part(s) involved in locking the barrel to the
slide durlng firing {as idlentified by the Government
representative) shall be magnetic particle inspected in accordance
with MIL-sTD-1949 or dye penetrant inspected in accordance with
MIL-STD-6866, AS applicable, for evidence of injurious defects.
Proof marks and inspection marks shall be applied on parts that
have passed this test.
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