 |
|||
|
|
|||
| ||||||||||
|
|  MIL-B-70511B (AR)
4.3.3.3 Function. The function test shall be conducted as
set forth below on first article M2 bolts and production lots.
4.3.3.3.1 Function (first article). Thirty rounds shall be
fired with each M2 Bolt as specified in 4.5.2.1. If 4 or more
malfunctions occur that are attributable to the M2 Bolt, the
first article sample shall be rejected. Also, 2 or more
malfunctions with any single M2 Bolt shall cause rejection of the
first article sample.
4.3.3.3.2 Function (lot acceptance). Each M2 Bolt shall be
functioned tested for lot acceptance in accordance with 4.5.2.2.
A fully loaded 30-round magazine shall be used in the function
firing of each M2 Bolt. A total of 21 or more malfunctions
attributed to the M2 Bolt shall cause rejection of the
represented lot. Also, 2 or more malfunctions with any single M2
Bolt shall cause rejection of the represented lot.
4.3.3.4 Firing pin indent. A random sample of twenty (20)
M2 Bolts from each inspection lot shall be subjected to the
firing pin indent test as specified in 4.5.6. Failure of any M2
Bolt to meet the requirements shall cause rejection of the lot.
4.3.3.5 Cyclic rate of fire. A random sample of twenty (20)
M2 Bolts from each inspection lot shall be checked for cyclic
rate of fire as specified in 4.5.3. If any M2 Bolt fails to meet
the requirement, a failure analysis report shall be submitted to
the Government for approval.
4.4 Ammunition. The ammunition used for the performance
tests shall be Cartridge, 5.56mm, M862 Short Range Training
Ammunition and have met all of the requirements of MIL-C-70725.
4.5
Methods of inspection.
The dimensions listed in
4.5.1 Special dimensions.
requirement 3.3 shall be measured using Government approved
equipment.
4.5.2 Function. The M2 Bolt shall be inserted in a
Government approved M16, M16A1 and M16A2 Rifles and fired from a
Government approved test stand. Firing sequence shall be as
specified below. All malfunctions shall be recorded.
4.5.2.1 Function (first article). Ten M2 Bolts shall be
functioned tested during first article by firing thirty rounds
with each bolt. Ten magazines, fully loaded with 5.56mm, M862
Short Range Training Ammunition shall be used for this test.
Three M2 Bolts shall be tested in the M16 Rifle, three in the
M16A1 Rifle and four in the M16A2 Rifle. With the M16 and M16A1,
each thirty-round firing shall consist of two bursts of
approximately three rounds with the remaining rounds fired in one
13
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals