Military

No. 3-22.68

Washington, DC, 31 January 2003

CREW-SERVED MACHINE GUNS,
5.56-mm AND 7.62-mm

CONTENTS

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

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

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

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

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

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 B.

APPENDIX D.

DISITRIBUTION RESTRICTION:   Approved for public release; distribution is unlimited.