Military

APPENDIX B

PROFICIENCY (PERFORMANCE) EXAMINATION

A proficiency examination determines if a soldier can perform all the tasks taught in the dry-fire training. This appendix is a guide for administering the examination to gunners.

B-1.   DRY-FIRE PROFICIENCY EXAMINATION

The examination is a practical nonfiring exercise given during the last period of instruction on the machine gun before range firing. It may be held indoors if there are available facilities. The soldier must demonstrate techniques for the following tasks:

 

  • General disassembly and assembly.
  • Placement of direction and elevation readings on the T&E mechanism.
  • Immediate action.
  • Field zeroing.
  • Engagement of a linear and a deep target.

B-2. CONDUCT OF THE EXAMINATION

Leaders can use the following schedule or modify it to fit their unit's training.

 

  • Orientation, instructions, breakdown, and movement— 15 minutes.
  • Five stations— 30 minutes each.
  • Two breaks— 10 minutes each.
  • Four movement periods— 5 minutes each.
  • Total time— 3 hours, 25 minutes.

B-3.   STATION 1: PERFORM GENERAL DISASSEMBLY AND ASSEMBLY

This station normally has 11 setups. Each has one tripod-mounted machine gun with cover raised, bolt forward, and safety on the "F" position. This is placed on a mat to keep the parts free of dirt.

a.   The following statement should be read at this station:
"DURING THIS PERIOD, YOU WILL BE ORGANIZED INTO THREE GROUPS AND REQUIRED TO DISASSEMBLE AND ASSEMBLE THE MACHINE GUN. THERE WILL BE ONE MACHINE GUN AND ONE GRADER FOR EVERY TWO GUNNERS. EACH GROUP WILL BE ALLOWED EIGHT MINUTES TO COMPLETE GENERAL DISASSEMBLY AND ASSEMBLY. IF YOU HAVE ANY TROUBLE, RAISE YOUR HAND AND THE GRADER WILL ASSIST YOU. THE TWO GROUPS NOT BEING TESTED WILL REMAIN TO THE REAR OF THE STATION WITH THEIR BACKS TOWARDS THE WORKING AREA UNTIL THEY ARE CALLED."

b.   A scoresheet, like the example in Figure B-1, should be used in grading individual performance.

c.   As each group completes this station, each grader should assemble the individuals he graded and gives them a thorough critique (6 minutes).


STATION 1: CHECKLIST
PERFORM GENERAL DISASSEMBLY AND ASSEMBLY

1.   Cleared the machine gun using the procedures prescribed.

2.   Disassembled the machine gun as prescribed for that machine gun.

a.   Removed the buttstock and buffer assembly.

b.   Removed the driving spring rod assembly.

c.   Removed the bolt and operating rod assembly. (Bolt is not separated from operating rod)

d.   Removed the trigger housing assembly.

e.   Removed the cover assembly.

f.   Removed the feed tray.

g.   Removed the barrel assembly hand heat shield.

h.   Removed the handguard from the receiver.

3.   Assembled the machine gun as prescribed for that machine gun.

a.   Replaced the handguard on the receiver.

b.   Replaced the barrel assembly and heat shield.

c.   Replaced the cover assembly and feed tray.

d.   Replaced the trigger assembly.

e.   Replaced the bolt and operating rod assembly.

f.   Replaced the driving spring rod assembly.

g.   Replaced the buttstock, pulled the bolt to the rear, closed the cover, and pulled the trigger.

4.   Completed task in 8 minutes.

TASK: GENERAL DISASSEMBLY AND ASSEMBLY

GO

NO GO

1. Cleared the machine gun using the procedures prescribed.

   

2. Disassembled the machine gun as prescribed for that machine gun.

   

a. Removed the buttstock and buffer assembly.

   

b. Removed the driving spring rod assembly.

   

c. Removed the bolt and operating rod assembly. (Bolt is not separated from operating rod.)

   

d. Removed the trigger housing assembly

   

e. Removed the cover assembly.

   

f. Removed the feed tray.

   

g. Removed the barrel assembly hand heat shield.

   

h. Removed the handguard from the receiver.

   

3. Assembled the machine gun as prescribed for that machine gun.

   

a. Replaced the handguard on the receiver.

   

b. Replaced the barrel assembly with the heat shield.

   

c. Replaced the cover assembly and feed tray.

   

d. Replaced the trigger assembly.

   

e. Replaced the bolt and operating rod assembly.

   

f. Replaced the driving spring rod assembly.

   

g. Replaced the buttstock, pulled the bolt to the rear, closed the cover, and pulled the trigger.

   

4. Completed task in 8 minutes.

   

Figure B-1. Example format for Station 1 scoresheet.


B-4. STATION 2: PLACE DIRECTION AND ELEVATION READINGS ON THE T&E MECHANISM

This station normally has 11 setups. Each has one tripod-mounted machine gun complete with pintle and platform group and traversing-and-elevating mechanism.

a.   For the first direction reading, the grader should ensure that the traversing slide is an even 5-mil graduation on the traversing bar. The gunner is required to place 1 to 4 mils on the traversing handwheel; for example, L242. This requires the gunner to center the traversing mechanism before he can place the next direction reading on it. The second direction reading should be in the opposite direction; for example, R240. The second elevation reading should also be a major change: +50/32 to -50/17.

b.   The following statement should be read at this station:
"DURING THIS PERIOD, YOU WILL BE ORGANIZED INTO THREE GROUPS AND REQUIRED TO PLACE TWO SETS OF READINGS ON THE TRIPOD-MOUNTED MACHINE GUN. A GRADER WILL CHECK YOUR FIRST SET OF READINGS BEFORE YOU PLACE THE SECOND SET ON THE TRIPOD-MOUNT MACHINE GUN. YOU WILL BE ALLOWED EIGHT MINUTES AT THIS STATION. IF YOU HAVE ANY TROUBLE, RAISE YOUR HAND AND THE GRADER WILL ASSIST YOU. THE TWO GROUPS NOT BEING TESTED WILL REMAIN TO THE REAR OF THE STATION WITH THEIR BACKS TOWARDS THE WORK AREA UNTIL THEY ARE CALLED."

c.   A scoresheet, like the example in Figure B-2, should be used in grading individual performance.

d.   As each group completes this station, each grader should assemble the individuals he graded and gives them a thorough critique (6 minutes).


STATION 2: CHECKLIST
PLACE DIRECTION AND ELEVATION READINGS ON THE T&E
MECHANISM

a.   Placed first set of readings on the T&E mechanism.

a.   Centered the traversing handwheel.

b.   Placed direction reading on T&E mechanism.

c.   Placed elevation reading on T&E mechanism.

2.   Placed second set of readings on the T&E mechanism.

a.   Placed direction reading on T&E mechanism.

b.   Placed elevation reading on T&E mechanism.

3.   Completed task in 8 minutes.

TASK: PLACE DIRECTION AND ELEVATION READINGS ON

THE T&E MECHANISM

GO

NO GO

1. Placed first set of readings on the T&E mechanism.

   

a. Centered the traversing handwheel.

   

b. Placed direction reading on T&E mechanism.

   

c. Placed elevation reading on T&E mechanism.

   

2. Placed second set of readings on T&E mechanism.

   

a. Placed directing reading on T&E mechanism.

   

b. Placed elevation reading on T&E mechanism.

   

3. Completed task in 8 minutes.

   

Figure B-2. Example format for Station 2 scoresheet.

B-5. STATION 3: PERFORM IMMEDIATE ACTION

This station normally has six setups. Each has a cleaning rod and a bipod-mounted machine gun with bolt forward, cover closed, and safety on "F" position.

a.   The grader should ask the individual to perform immediate action as he would if a round were in the chamber and would not fire providing the barrel was not hot enough to cause a cook off.

b.   The following statement should be read at this station:
"DURING THIS PERIOD, YOU WILL BE ORGANIZED INTO FIVE GROUPS AND REQUIRED TO GO THROUGH THE STEPS OF IMMEDIATE ACTION AND REMEDIAL ACTION WITH THE MACHINE GUN. YOU WILL BE ALLOWED FIVE MINUTES. IF YOU HAVE ANY TROUBLE, RAISE YOUR HAND AND A GRADER WILL ASSIST YOU. THE GROUPS NOT BEING TESTED WILL REMAIN TO THE REAR OF THE STATION WITH THEIR BACKS TOWARDS THE WORK AREA UNTIL THEY ARE CALLED."

c.   A scoresheet, like the example in Figure B-3, should be used in grading individual performance.

d.   As each group completes this station, each grader assembles the individuals that he graded and gives them a thorough critique (5 minutes).


STATION 3: CHECKLIST
PERFORM IMMEDIATE ACTION

1.   Pulled the cocking handle to the rear.

2.   Observed a round, cartridge or linked being extracted from the machine gun.

3.   Returned cocking handle to the forward position.

4.   Attempted to fire the machine gun.

5.   If the machine gun did not fire, pulled the cocking handle to the rear, locking the bolt assembly to the rear.

6.   Place the safety on "S" and returned cocking handle to the forward position.

7.   If machine gun was hot, kept it pointed downrange and waited 15 minutes, then performed remedial action. If machine gun was cold, performed remedial action.

8.   Completed the task in 5 minutes.

TASK: IMMEDIATE ACTION

GO

NO GO

1. Pulled the cocking handle to the rear.

   

2. Observed a round, cartridge or linked being extracted from the machine gun.

   

3. Returned cocking handle to the forward position.

   

4. Attempted to fire the machine gun.

   

5. If the machine gun did not fire, pulled the cocking handle to the rear, locking the bolt assembly to the rear.

   

6. Placed the safety on "S" and returned the cocking handle to the forward position.

   

7. When machine gun was hot, kept it pointed downrange, waited 15 minutes, then performed remedial action. When machine gun was cold, performed remedial action.

   

8. Completed the task in 5 minutes.

   

Figure B-3. Example format for Station 3 scoresheet.

B-6.   STATION 4: PERFORM FIELD ZEROING

This station normally has six setups. Each has a bipod-mounted machine gun with tools needed.

a.   The grader tells each individual the range (500 meters) to the target and has him simulate the firing of a 7-round burst (M249) or 9-round burst (M60/M240B). The grader then tells the individual what corrections for deflection and elevation (in meters) are needed to hit the target. The gunner is then graded on his actions.

b.   The following statement should be read at this station:
"DURING THIS PERIOD, YOU WILL BE ORGANIZED INTO FIVE GROUPS AND REQUIRED TO GO THROUGH THE STEPS OF FIELD ZEROING. YOU WILL BE ALLOWED FIVE MINUTES TO PERFORM AND EXPLAIN YOUR ACTIONS TO THE GRADER. IF YOU HAVE ANY PROBLEM, ASK YOUR GRADER. THE GROUPS NOT BEING TESTED WILL REMAIN TO THE REAR OF THE STATION WITH THEIR BACKS TOWARDS THE WORK AREA UNTIL THEY ARE CALLED."

c.   A scoresheet, like the example in Figure B-4, should be used in grading individual performance.

d.   As each group completes this station, each grader assembles the individuals that he graded and gives them a thorough critique (5 minutes).


STATION 4: CHECKLIST
PERFORM FIELD ZEROING

1.   Placed the range setting on 500 meters.

2.   Made corrections for deflection.

3.   Made corrections for elevation.

4.   Simulated firing the second burst and hitting the target.

5.   Completed task in 5 minutes.

TASK: FIELD ZEROING

GO

NO GO

1. Placed the range setting on 500 meters.

   

2. Made corrections for deflection.

   

3. Made corrections for elevation.

   

4. Simulated firing the second burst and hitting the target.

   

5. Completed task in 5 minutes.

   

Figure B-4. Example format for Station 4 scoresheet.

B-7.   STATION 5: ENGAGE A LINEAR AND A DEEP TARGET

This station normally has six setups. Each should have a punchboard-type training aid or a blackboard and chalk.

a.   The individual is required to show his point of initial lay, direction of manipulation, and extent of manipulation for a linear (single machine gun) and a deep target (pair of machine guns). The individual is also asked what rate of fire he would use to engage these targets if the rate were not stated in the fire command.

b.   The following statement should be read at this station:
"DURING THIS PERIOD, YOU WILL BE ORGANIZED INTO FIVE GROUPS AND REQUIRED TO EXPLAIN HOW TO ENGAGE DIFFERENT TARGETS WITH THE MACHINE GUN EMPLOYED SINGLY AND IN PAIRS. YOU WILL BE ALLOWED FIVE MINUTES FOR SIMULATED ENGAGEMENT OF TWO TYPES OF TARGETS. IF YOU HAVE ANY QUESTIONS, ASK YOUR GRADER. THE GROUPS NOT BEING TESTED WILL REMAIN TO THE REAR OF THE STATION WITH BACKS TOWARDS THE WORK AREA UNTIL THEY ARE CALLED."

c.   A scoresheet, like the example in Figure B-5, should be used in grading individual performance.

d.   As each group completes this station, each grader assembles the individuals that he graded and gives them a thorough critique (5 minutes).


STATION 5: CHECKLIST
ENGAGE A LINEAR AND A DEEP TARGET

1.   Engaged a linear target (single machine gun).

a.   Used initial point of aim.

b.   Manipulated T&E mechanism.

c.   Used sustained rate of fire.

2.   Engaged a deep target (pair of machine guns).

a.   Used initial point of aim.

b.   Manipulated T&E mechanism.

c.   Used sustained rate of fire.

3.   Completed task in 5 minutes.

TASK: ENGAGE A LINEAR AND A DEEP TARGET

GO

NO GO

1. Engaged a linear target (single machine gun).

   

a. Used initial point of aim.

   

b. Manipulated T&E mechanism.

   

c. Used sustained rate of fire.

   

2. Engaged a deep target (pair of machine guns).

   

a. Used initial point of aim.

   

b. Manipulated T&E mechanism.

   

c. Used sustained rate of fire.

   

3. Completed task in 5 minutes.

   

Figure B-5. Example format for Station 5 scoresheet.



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