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Ballistic performance (proving ground) |
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|  MIL-C-48697 (AR)
The cartridges
3.3 Ballistic performance (proving ground).
shall comply with the requirements (see 4.4.3.2)
The cartridges shall not fail to fire from
3.3.1 Misfires.
the weapon.
3.3.2 Premature functioning. There shall be no premature
functioning in the mortar tube or within 100 meters travel from
the mortar tube.
3.3.3 Functioning. There shall be visible evidence of
functioning upon impact as indicated by the presence of a flash or
smoke cloud to its maximum range (see 6.5).
3.3.4 Metal parts separation. There shall be no metal parts
separation in the mortar tube or in flight.
3.3.5 Range precision. The horizontal range standard
deviation shall be no greater than 18.0 meters when fired at
charge "zero and no greater than 43.0 meters when fired at charge
four.
3.3.5.1 Short rounds. No cartridge shall have a horizontal
range less than 80 percent of the average horizontal range when
calculated without the short rounds.
3.4 First article. When specified in the contract or
purchase order, a sample shall be subjected to first article
inspection in accordance with the technical provisions herein.
(See 4.3 and 6.1).
3.5 Workmanship. Threads shall be full and undamaged for the
entire minimum length or depth. No part may have a burr which
might interfere with the assembly or function of the round or
which might be injurious to personnel handling the item. All
parts shall be free of chips or foreign matter. The cleaning
method used shall not be injurious to any of the parts, nor shall
the parts be contaminated with residue. All required markings
shall be neat and sharply defined.
4.
QUALITY ASSURANCE PROVISIONS
4.1 Responsibility for inspection. Unless otherwise
specified in the contract or purchase order, the contractor is
responsible for the performance of all inspection requirements as
specified herein. Except as otherwise specified in the contract
or purchase order, the contractor may use his own or any other
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