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MIL-C-48697 (AR)
One or more premature burst occur
d.
One or more metal parts separation occur
e.
Horizontal rage standard deviation at charge 0 or
f.
charge  4, if exceeded
4.4.4 Inspection  equipment.  The inspection equipment
required to perform the examinations and tests prescribed herein
is described in the "Paragraph Reference/Inspection Method" column
in the tables starting with paragraph 4.4.2.1.  The contractor
shall submit for approval inspection equipment designs in
accordance with the terms of the contract.  See Section 6 of
MIL-A-48078 and 6.2 herein.
4.5 Methods of inspection.
4.5.1 Proving ground test.  The test shall be performed at a
Government proving Ground in accordance with the applicable
USATECOM Acceptance Test Procedure.
The cartridges for first article and production lot acceptance
2.5F.  The sample for the
shall be conditioned at 70F
first three production lots (80) shall be separated into two equal
groups; one group tested at charge zero, and one group tested at
charge four.
After three consecutive lots have complied with the acceptance
requirements the production lot sample (48) shall be separated
into two groups; one group tested at charge zero, and one group
tested at charge four.
The cartridge shall be fired from a standard 60MM LWCMS M224
(or equivalent ballistic tube) mortar at an elevation of
forty-five degrees from a ground mount within two minutes after
removal from the conditioning chamber.  All fuzes shall be set to
Superquick (SQ) functioning.  The individual velocities,
pressures, deflections, and ranges shall be recorded on the firing
record.
Observation shall be made for misfires and improper impact
functioning (duds or no evidence of flash or smoke), and shall be
recorded.  Should a premature burst or metal parts separation
occur, a photograph shall be taken of the evidence and attached to
the firing record.  The velocity and range standard deviations and
arithmetic averages shall be calculated and recorded.  Range
probable error shall be calculated and recorded.  Temperature of
the day, weather and the time of firing shall also be recorded.
15

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