Publication Title: Crew-Served Machine Guns
Publication/revision date: 31 JAN 2003
Field Manual: FM 3-22.68
Supersedes: FM 23-67, 29 FEB 1984, FM 23-14, 26 JAN 1994
Distribution Restriction: Approved for public release, distribution unlimited (public domain manuals)
Contents:
CONTENTS
COVER
PREFACE
CHAPTER 1. M249 MACHINE GUN
Section
I. Description and Components
1-1. Description
1-2. Components
1-3. Ammunition
1-4. Blank Firing Attachment
Section
II. Maintenance
1-5. Clearing Procedures
1-6. General Disassembly
1-7. Inspection
1-8. Cleaning, Lubrication, and Preventive Maintenance
1-9. General Assembly
1-10. Function Check
1-11. Maintenance Procedures
1-12. Maintenance During Nuclear, Biological, Chemical Conditions
Section
III. Operation and Function
1-13. Operation
1-14. Loading
1-15. Unloading
1-16. Cycle of Functioning
1-17. Sights
1-18. M122 Tripod
1-19. Bipod Operations
1-20. Vehicular Mount
1-21. Tripod Positioning
Section
IV. Performance Problems and Destruction
1-22. Malfunctions.
1-23. Stoppages
1-24. Immediate Action
1-25. Remedial Action
1-26. Destruction Procedures
CHAPTER 2. M60 MACHINE GUN
Section
I. Description and Components
2-1. Description
2-2. Components
2-3. Ammunition
2-4. Blank Firing Attachments, M13 and M13A
Section
II. Maintenance
2-5. Clearing Procedures
2-6. General Disassembly
2-7. Inspection
2-8. Cleaning, Lubrication, and Preventive Maintenance
2-9. General Assembly
2-10. Function Check
2-11. Maintenance Procedures
2-12. Maintenance During Nuclear, Biological, Chemical Conditions
Section
III. Operation and Function
2-13. Operation
2-14. Loading
2-15. Unloading....
2-16. Cycle of Functioning
2-17. Sights
2-18. M122 Tripod
2-19. Bipod Operations
2-20. Vehicular Mount
2-21. Tripod Position
Section
IV. Performance Problems and Destruction
2-22. Malfunctions.
2-23. Stoppages
2-24. Immediate Action
2-25. Remedial Action
2-26. Destruction Procedures
CHAPTER 3. M240B MACHINE GUN
Section
I. Description and Components
3-1. Description
3-2. Components
3-3. Ammunition
3-4. Ammunition Adapter
3-5. Blank Firing Attachment
Section
II. Maintenance
3-6. Clearing Procedures
3-7. General Disassembly
3-8. Inspection
3-9. Cleaning, Lubrication, and Preventive Maintenance
3-10. General Assembly
3-11. Function Check
3-12. Maintenance Procedures
3-13. Maintenance During Nuclear, Biological, Chemical Conditions
Section
III. Operation and Function
3-14. Operation
3-15. Loading
3-16. Unloading
3-17. Cycle of Functioning
3-18. Sights
3-19. M122A1 Tripod
3-20. Bipod Operations
3-21. Tripod Operations
Section
IV. Performance Problems and Destruction
3-22. Malfunctions
3-23. Stoppages
3-24. Immediate Action
3-25. Remedial Action
3-26. Stuck Barrel
3-27. Destruction Procedures
CHAPTER 4. MACHINE GUN MARKSMANSHIP TRAINING
Section
I Introduction
4-1. Objectives
4-2. Training Phases
4-3. Training Strategy
4-4. Training for Combat Conditions
Section
II. Preliminary Gunnery
4-5. Marksmanship Fundamentals
4-6. Firing Positions
4-7. Night Fire
4-8. Nuclear, Biological, Chemical Fire
4-9. Engagement of Moving Targets
4-10. Traverse and Search
4-11. Direct Lay
4-12. Application of Fire
4-13. Fire Adjustment
4-14. Effects of Wind
4-15. Fire Commands
4-16. Dry-Fire Exercise
4-17. Multipurpose Machine Gun Range Layout
4-18. Basic Machine Gun Target
4-19. Target Analysis
Section
III. Crew Drill
4-20. Preparation
4-21. Crew Equipment
4-22. Formation (Bipod or Tripod Mounted)
4-23. Cross-Training Procedures
4-24. Inspection for Bipod Fire
4-25. Placement into Action (Bipod)
4-26. Procedures for Changing the Barrel (Bipod)
4-27. Removal from Action (Bipod)
4-28. Inspection for Tripod Fire
4-29. Placement into Action (Tripod)
4-30. Procedures for Changing the Barrel (Tripod)
4-31. Removal from Action (Tripod)
4-32. Prone Position
Section
IV. Basic Gunnery for the M249, M60, and M240B Machine Guns
4-33. Zero
4-34. Field Zero
4-35. 10-Meter Firing
4-36. 10-Meter Conduct of Fire
4-37. 10-Meter Firing, Qualification
4-38. Transition Fire
4-39. Transition Conduct of Fire, Bipod
4-40. Transition Fire, Limited Visibility
4-41. AN/PVS-4 Zero
4-42. Qualification Standards
CHAPTER 5. COMBAT TECHNIQUES OF FIRE
Section
I. Characteristics of Fire
5-1. Trajectory
5-2. Maximum Ordinate
5-3. Cone of Fire
5-4. Beaten Zone
5-5. Danger Space
Section
II. Classes of Fire
5-6. Respect to the Ground
5-7. Respect to the Target
5-8. Respect to the Machine Gun
Section
III. Application of Fire
5-9. Types of Targets
5-10. Distribution, Concentration, and Rate of Fire
5-11. Target Engagement
5-12. Target Engagement during Limited Visibility
5-13. Overhead Fire
5-14. Defilade Positions
Section
IV. Predetermined Fires
5-15. Terminology
5-16. Range Card
Section
V. Fire Control
5-17. Methods of Fire Control
5-18. Fire Commands
Section
VI. Range Determination
5-19. Range Estimation
5-20. Lateral Distance Measurement
Section
VII. Advanced Gunnery
5-21. Objectives
5-22. Organization
5-23. Ammunition
5-24. Firing Sequence
5-25. Alternate Firing Positions
5-26. Movement, Speed, and Alignment
5-27. Reloading
CHAPTER 6. TRAIN-THE-TRAINER PROGRAM
6-1. Mission-Essential Task List
6-2. Trainer Assessment
6-3. Assistant Trainers and Cadre Coaches
6-4. Program Phases
6-5. Training Tasks
6-6. Trainer Certification Program
APPENDIX A. UNIT TRAINING PROGRAM
APPENDIX B.
PROFICIENCY (PERFORMANCE) EXAMINATION
APPENDIX C. AERIAL DEFENSE
APPENDIX D.
RANGE SAFETY
APPENDIX E. EMPLOYMENT
APPENDIX F. TRAINING AIDS AND DEVICES
APPENDIX G. ADVANCED OPTICS AND LASERS
APPENDIX H. 10-METER BORE LIGHT/25-METER TARGET OFFSETS
GLOSSARY
REFERENCES
AUTHENTICATION
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