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1 FM 23-65C2 Change 2 HeadquartersDepartment of the ArmyWashington, DC, 23 December 2002 browning machine GunCaliber .50 HB, FM 23-65, 19 June 1991, as follows:Remove old pages:Insert new pages:Pages 1-7 through 1-7 through 1-10 Appendix APages C-1 through C-1 through C-2 Appendix GDA Form Form 7450-RDA Form Form 7451-RReferences: Pages 1 and : Pages 1 and star (*) marks new or changed this transmittal sheet in front of the RESTRICTION: Approved for public release; distribution is unlimited. 0133302 DISTRIBUTION:Active Army, USAR, and ARNG: To be distributed in accordance with the initial distributionnumber 110203, requirements for FM Order of the Secretary of the Army:ERIC K. SHINSEKIG eneral, United States ArmyChief of StaffOfficial:JOEL B. HUDSONA dministrative Assistant to theSecretary of the Army FM 23-65 C1 Change 1 Headquarters Department of the Army Washington, DC, 12 September 2001 browning machine Gun Caliber .50 HB, M2 1.

2 Change FM 23-65, 19 June 1991, as follows: Remove old pages: Insert new pages: Pagesi through iv ..i though through through through through through through through C-6 ..C-5 through through C-22 ..C-21 through through F-2 ..F-1 through F-2 .. through through through References-3 ..References1 through through through Form 7007-R ..DA Form Form Form Form Form pages (not counting this page):..622. A star (*) marks new or changed material. 3. File this transmittal sheet in front of the publication. DISTRIBUTION RESTRICTION: Approved for public release; distribution is unlimited. By Order of the Secretary of the Army: Official: ERIC K. SHINSEKI General, United States Army Chief of Staff JOEL B. HUDSON Administrative Assistant to the Secretary of the Army 0133302 DISTRIBUTION: Active Army, USAR, and ARNG: To be distributed in accordance with DA Form 12-11E, requirement for FM 23-65, browning machine Gun, Caliber .50 HB, M2 (Qty rqr block no.)

3 0203). C1, FM 23-65 * C1, FM 23-65 FIELD MANUAL HEADQUARTERS No. 23-65 DEPARTMENT OF THE ARMY Washington, DC, 19 June 1991 browning machine GUN CALIBER .50 HB, M2 CONTENTS Page * CHAPTER 1. INTRODUCTION 1-1. Training 1-2. 1-3. 1-4. Ground Mounts ..1-9 1-5. Accessories for Ground 1-6. Vehicular 1-7.

4 * CHAPTER 2. MAINTENANCE 2-1. 2-2. General 2-3. Cleaning, Inspection, and Lubrication ..2-9 2-4. Maintenance 2-5. Maintenance Under NBC 2-6. General 2-7. Function * CHAPTER 3. OPERATION AND FUNCTIONING 3-1. 3-2.

5 Loading 3-3. Unloading 3-4. Cycle of 3-5. Left-hand 3-6. Headspace and _____ DISTRIBUTION RESTRICTION: Approved for public release; distribution is unlimited. _____ *This publication supersedes FM 23-65, 19 May 1972, and TC 23-65-1, 19 September 1984. i C1, FM 23-65 Page CHAPTER 4. PERFORMANCE PROBLEMS AND DESTRUCTION 4-1. 4-2. 4-3.

6 Immediate 4-4. Remedial 4-5. Destruction CHAPTER 5. MARKSMANSHIP TRAINING Section I. Planning ..5-1 5-1. 5-2. Commander's 5-3. Phases of 5-4. Sustainment 5-5. Remedial Section II. 5-6.

7 Firing 5-7. Dry Fire 5-8. Range 5-9. Observation and Adjustment of 5-10. Fire 5-11. Crew 5-12. machine Gun Fundamental Skills Test ..5-36 Section III. Basic 5-13. Concept of 5-14. 10-Meter Firing 5-15. Transition Day Firing 5-16. NBC 5-17. Night Fire Section IV. Advanced 5-18. 5-19. Tracking and Leading 5-20.

8 Mounted Firing 5-21. Mounted NBC Firing 5-22. Predetermined Firing CHAPTER 6. COMBAT TECHNIQUES OF FIRE Section I. 6-1. Characteristics of 6-2. Classes of Fire ..6-3 Section II. Fire 6-3. Methods of Fire 6-4. Targets and Their 6-5. Overhead Fire ..6-14 6-6. Defilade 6-7. Methods of Laying the Gun for Defilade 6-8. Final Protective 6-9. Application of 6-10. Fire 6-11.

9 Antiaircraft ii C1, FM 23-65 Page Section III. Limited Visibility 6-12. 6-13. 6-14. Target 6-15. Fire 6-16. Preplanned 6-17. NBC CHAPTER 7. TRAIN THE TRAINER PROGRAM 7-1. 7-2.

10 Trainer Certification 7-3. Responsibilities and Duties of the APPENDIX A. APPENDIX B. TRAINING AIDS AND * APPENDIX C. RANGES AND TRAINING APPENDIX D. FIGHTING APPENDIX E. RANGE * APPENDIX F. AERIAL * APPENDIX G NIGHT * * * * DA Forms iii C1, FM 23-65 * PREFACE This manual provides technical information, training techniques, and guidance on the caliber .50 HB machine gun, M2. Unit leaders and designated gunners will use this information to successfully integrate the weapon into combat operations. They can instruct on the range or at concurrent training stations. The material applies as is to both nuclear and conventional warfare. Trainers must ensure that everyone observes safety procedures at all times. Commanders, trainers, and individual students must remember that safety is everyone's responsibility.