MIL-R-3285
nent, and without malfunction, in excess of
4. SAMPLING, INSPECTION, AND
the limits shown in table I.
TEST PROCEDURES
4.1 General procedures and inspection.
3.11 Workmanship. -- Finished rifles shall
be free of defects which may affect service-
4.1.1 Sampling.
ability, functioning, operation, or appearance.
4.1.1.1 Lot.--un}ess otherwise specified, 8
TABLE I.--Malfunctiom, nonacceptable con
lot shall consist of not more than 500 rifies
ditions, and broken parts.
or 500 of each spare part.
Number per-
4.1.2.2 Size of sample The size of the
mitted in the
inspection sample shall consist of the entire
endurance test
Malfunctions and nonacceptable
lot The size of test sample shall be as speci-
conditions
First Second
fied under each test.
3,000 3,000
rounds rounds
4.1.2 Inspection and tests, general.
Failure of trigger to release (any
4.1.2.1 Place. -- Unless otherwise speci-
cause)
0
0
fied, inspection and tests shall be conducted
Failure to Close (due to any rifle
by a Government inspector at the place of
component) ------------------
3
5
Failure to eject cartridge case----
0
0
manufacture. The inspector may subject all
Failure to eject chip _______
1
1
or part of any lot of components or assem-
Failure to extract (bolt remains
blies to such inspection as he deems necessary
closed )
0
0
to determine compliance with this specifica-
Failure to feed (insufficient recoil)
4
2
tion.
Failure to stay open on last round.
0
0
Follower fails to function____
0
0
4.1.2.2 Contractors inspection.-The con-
Hangfire (noticeable). (See
4.12.4.1.
)
tractor shall maintain an adequate system of
0
Loose barrel and receiver _____
0
processing, inspection, and lot identification.
0
0
Loose
stock
Only such lots which meet the requirements
Misfire. (See 4.1.2.4.1.) --------
0
0
of this specification shall be submitted for
Pierced primers (due to excessive
protrusion or roughness) ------
final Government inspection.
0
0
0
0
Safety fails to function _____
4.1.2.3 Concurrent tests. -- The targeting
Worn clip latch -----------------
0
0
Worn cylinder (causing gas leak)
0
0
test and the accuracy test may be fired con-
Breeching space max. 0.002 in.
currently at a range of 100 yards.
crease in 6,000 rds. --------
0
0
4.1.2.4 Reinspection and retests.
Broken or unserviceable parts
4.1.2.4.1 Hangfires and misfires.-If hang-
fires and misfires occur during any of the
0
0
tests, the rifle shall be subjected to the firing
1
0
pin indent test; and in the event that the
0
0
firing pin blow is not within the specified
0
0
limits, the rifle shall not be accepted until
0
1
properly corrected.
0
0
0
0
4.1.2.4.2 Defective ammunition. -- Mal-
0
1
0
0
functions in any test traceable to defective
0
0
ammunition shall not be counted against the
0
2
rifle being tested.
5
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