known accuracy, wing a fixed or a muzzle-
ly conditioned at the expense of the con-
and-elbow rest at a range of not less than
90 feet. The accuracy shall be such as to meet
5. PREPARATION FOR DELIVERY
the corresponding requirements of the above
paragraphs. If rifles are fired at a 90-foot
5.1 Preservation, packaging, and packing
range, then 1 percent of all rifles shall also
5.1.1 Rifles. -- Rifles shall be prepared
be tied at a 100-yard range as specified in
in accordance with Publication PS-5.
5.1.2 Spare parts.-Spare parts shall be
4.9.2 Rifle, M1C.
prepared in accordance with Publication
22.214.171.124 Each rifle shall be fired for accuracy
at a range of 100 yards. Firing shall be done
5.1.3 Telescopic sights.-Te]epic Sights
using a machine rest and Woodworth type
shall be packed in accordance with applicable
cradle. The flash hider shall be attached to
provisions of Packing Instructions PS-134.
the rifle during the firing. Government stand-
5.2 Marking.-Shipments for the Army
ard M2 ball ammunition of known accuracy
shall be marked in accordance with Specifica-
shall be used. All shots shall be within or cut
tion 100-2; for the Air Force in accordance
the edge of a circle 2 1/2 inches in diameter
with Specification 94-40645; and for the Navy
(all shots within a 3.1O-inch circumscribed
in accordance with the Navy Shipment Mark-
4.10 Endurance test.
4.10.1 One rifle selected by the inspector
6.1 Intended use.-The M1 rifle is intended
from the first 500 rifies and at least one rifle
for general service use; the M1C rifle for long
so selected from each successive 5,000 rifles,
range or sniper use.
found satisfactory in other tests, shall be con-
6.2 Ordering data. -- Procurement docu-
sidered as representative weapons and shall
ments should specify:
be subjected to endurance tests of 6,000
a. Title, number, and date of this speci-
rounds each. Twenty clips shall be selected
on the same basis and used in the test of
b. Model of rifle (see 1.1)
c. Telescope for M1C rifle when re-
quired (see 3.1.14).
4.10.2 Endurance tests shall be fired in
d. List of interchangable components
series not to exceed 120 rounds at the rate
and assemblies (see 3.4).
of approximately 40 rounds per minute using
caliber .30 ball ammunition and 20 clips se-
Notice---This specification, together with specifica-
lected for the test, in rotation, so that ap-
tions and drawings pertaining to it and bearing a
"Notice" of similar restrictions, is intended for use
proximately 300 rounds will be fired from
only in connection with procurement by the United
States Government, and shall not be reproduced
either wholly or in part except when authorized in
4.10.3 During this test, the barrel shall be
connection with Government procurement, nor be
cooled either by air or water after each series.
used for any other purpose except when specifically
authorized by the Chief of Ordnance.
Cleaning and oiling at reasonable intervals
4.10.4 Upon completion of the endurance
test, the rifle shall be cleaned and oiled and
all worn and defective components replaced.
Before acceptance, the rifle shall be thorough-