Master Gunner ™ Bradley: Ammo Capabilities

Define Booster pellet.

part of the ignition sequence of the ammunition. Ignited by primer, which in turn ignites the propellant in cartridge case

What is dummy ammunition used for?

practice gunnery related tasks; no penetrator, propellant, or explosive charge. Used for non-electrical check out of m242

What Can a TOW destroy?

tanks and other armored vehicles, helicopters, fortified bunkers, gun emplacements and other protected postions

How does the TOW 2B Fly?

2.25m over the gunners LOS.

What is the Sabot Danger area for the 25mm?

30 degrees left and right of GTL and 200m down range.

What is the M793? MER, Muzzle Velocity?

M793 TP-T MER 1600m Muzzle Velocity: 1100mps

What are the tank training rounds?

M831A1 HEAT-TP-T: Replicated M830 M1002 TPMP-T; Replicated M830A1 and M908; M865 TPCSDS-T: Replicates sabot rounds for training

What are the three training rounds for the M242?

M910 TPDS-T M793 TP-T M794 Dummy Round

What is the M910? MER, Muzzle velocity.

M910 TPDS-T MER: 2000m Muzzle velocity: 1525mps +- 20mps

What are the 120mm Mortar service rounds?

M929 WP: Screening and spotting M930 Illumination: Used for illumination and signaling M983 Illumination: Used for illumination M934 HE: Used against personnel (In the open or in bunker), light vehicles and light bunkers M933A1 HE: used against personnel (in open or in a bunker) light vehicles, and light bunkers

What is training 120mm Mortar round?

M931 FRTR: Ballistaclly similary to M933A1 and M934

Why is the MER of HEI-T 3000m?

Mechanical fuze(M758 fuze) detonates the round at approximately 3000m Tracer burn out is at 2000m, but observable up to 3000m 5 m bursing radius allows firer to engage both point and area targets out to 3000m however accuracy is decreased at 1600m

What is the sabot discarding safety zone of the Tank?

- 70m Left and right of the GTL - 1000m Down range

Describe the back blast area of a TOW?

- 90 degree cone - 50m back is the danger zone - 25m after the danger zone is the caution zone

What is the M919, its MER, Muzzle velocity, and penetrator

- APFSDS-T - penetrator is made of slate gray, corrosion protected, depleted uranium - black with white obturator - 1385mps +-20mps - MER: 2500m

Define M115 Primer.

- Cap in the base of the cartridge case - when struck by firing pin, starts ignition sequence of the booster pellet or flashtube, which in turn ignites the propellant charge

Define Propellant.

- Compoistion that burns - Producing gas preassure that forces the projectile assembly from the cartridge case down the gun barrel toward the target. The m242 uses slow burning propellant.

What is the M792? Its MER, Markings, Radius, arming distance, and muzzle velocity.

- HEI-T - MER Point 1600m - MER Area 3000m - Yellow with red band and black markings and gold tip. - 1100 mps +/- 20mps - 5 m radius - Arming distance 10-200m

What is the M791, Its MER, muzzle velocity, markings and penetrator.

- M791 APDS-T - projectile body conists of spin stabilized solid tungsten alloy penetrator - 1345mps +-20mps - MER 2000m accurate for 2200m - black with white markings

Define Flash tube.

- Part of the ignition sequence - Ignited by primer, which in turn ignites propellant in cartridge case. - Only on the M919 APFSDS-T to ensure through burning of propellant.

Define obturator.

- Rubber, nylon or copper ring that seals propellant gasses behind the projectile during fire - On the M919 reduced spin rate of projectile.

Define Rotating band.

- iron or nylon ring located in projectile assembly - engages lands and grooves of gun and seals propellant gasses behind the projectile during firing

What is the canister round and what is it used for?

-M1028 Canister -Used against massed personnel between 200m and 500m

What are the components of a 25mm round?

1. Booster Pellet 2. Cartridge Case 3. Flash tube 4. Fuze 5. Obturator 6. Ogive 7. M115 Primer 8. Projectile Assembly 9. Propellant 10. Pusher Base 11. Rotating Band 12. Sub Projectile 13. Tracer 14. Windscreen

What are the different types of detonation?

1. Direct impact 2. Grazing impact 3. Self destruct.

M919 APFSDS-T and M791 APDS-T Rounds are used to engage what?

1. Light Armored Vehicles 2. Self Propelled Arty Vics 3. Helicopters (Beyond 1200m) 4. Slow moving fixed wing aircraft

What are the three Tank Sabot rounds? What is it used to defeat?

1. M829A1 APFSDS-T 2. M829A2 APFSDS-T 3. M829A3 APFSDS-T Tank and tank like targets

What are the Special purpose tank rounds?

1. M830 HEAT-MP-T 2. M830A1 HEAT-MP-T Used to defeat armor, light armor, structures, obstacles and air targets. M908 HE-OR-T: Used to reduce obstacles between 200m and 1000m

What are the states of the fuze?

1. Safe 2. Set back 3. Arming Phase 4. Detonation

M792 HEI-T

1. Unarmoured vehicles (beyond 900m) 2. ATGM teams (Beyond 900m) 3. Troop formations (Beyond 900m) 4. Helicopters (1200m and closer)

Why is the M919 Self Sharpening?

Abdiatic shear bands form during production, which enables pieces of the mushrooming head to break off.

What are the capabilities of the BGM-71F6/ TOW 2B AERO?

Arming: 110m to 200m MER: 4200m but can be accurate up to 4500m Warhead: two 5 in warheads made of tantalum which forms an EFP. Enters 19in apart.

What are the capabilities of the BGM-71F/TOW 2B

Arming: 110m-200m MER:3750m Warhead: Two 5 in warheads made of tantalum which form EFP. Enters 19in apart.

What are the capabilities of the BGM-71E/TOW 2A

Arming: 30-65m MER:3750m Charge: 6in HEAT shaped charge with 6.6 pds of exlposive

What are the capaiblites of the BGM-71H?

Arming: 43-65m MER: 3750m Warhead: 6in fragmenting HE

What are the four service TOWs?

BGM-71E/TOW 2A BGM-71F/TOW 2B BGM-71F6 TOW 2B AERO BGM-71H/TOW BB

What is the MER of 7.62?

Bipod: 600point 800m area Tripod: 900 point 1800m area Vehicle: 900 point 1800m area Supression: 1800m 1800m

What makes up the penetrator of the M80A1?

Copper slug, steel penetrator, and reverse drawn copper jacket

If witness lines are not present on the M1028 Canister round what should happen?

Crewmember grasps both forward and aft body and twists in opposite directions. If any movement occurs reject the round

M242 ammunition is classified into what categories?

Kinetic Energy and Chemical Energy

What are the three service rounds for the M242?

M791 APDS-T M919 APFSDS-T M792 HEI-T

Define Pusher Base.

Part of the 25mm M910 TPDS-T and M791 APDS-T. Metal base of the projectile assembly that the propellant gasses push against to drive the projectile assembly down the gun barrel. Disccarded from the projectile assembly once it leaves the gun barrel.

Define Fuze.

Part of the HE projectile that causes it to function upon impact with target. M792 round only

Define Projectile Assembly.

Part of the round that travels through the gun tube. Include sub projectile, windscreen, fuze, sabot, base and tracer.

What are the sensors on the TOW 2B? What do they detect

Prolifometer: senses profile change (height from ground to hull) Magnetometer: Senses magnetic signature

Define Tracer

Pyrotechnic flare material used to make the projectile trajectory visible with naked eye

Describe the states of the fuze.

Safe: Firing pin is locked in safe notch of rotor assembly Setback: Entire assembly moves reward of round. Self destruct balls move outward due to centrigugal force locking the body assembly to the rear Arming Phase: Piston Spring exerts its force moving the firing pin and restrictor back to the front of the round. Rotor assembly rotates until rotor lock ball locks into place Detonation: Either the probe is crushed forcing the firing pin reward detonating the HEI mix or spin decay due to loss of forward velocity occurs causing self destruct balls to release allowing set back spring to release energy forcing body assembly into firing pin.

What is a Tow?

Solid propellant, command guided, surface attack, guided missile system

Define Cartridge case.

Steel casing that contains the propellant, booster pellet, flash tube and primer

What are mortars?

Suppressive indirect weapons. Employed to neutralize point and area targets, screen large areas with smoke, and provide illumination or coordinate HE/Illumination.

Define KE.

The energy possessed by a body because of its motion. It is equal to one half the mass of the body times the square of its speed.

Define Sub Projectile

Typically for KE rounds. Part of the projectile that travels to the target after it has discarded its sabots

What are the parts of the M791 penetrator?

Windscreen, tracer, base, tungsten sub projectile, nose cap.

What are the beacons for the TOW?

Xeon Beacon: Day TV Thermal Beacon: FLIR

Define Wind Screen

a pointed, curved surface mainly used to form the streamlined nose of the round.

What are the 3 parts of the 7.62 round?

brass casing, projectile, and propellant

Define Ogive.

curved portion of the projectile assembly; provides aerodynamic shape which lowers drag

The M242 can destroy what types of targets?

lightly armored ground vehicles and aerial targets such as helicopters and slow flying fixed wing aircraft. Can be used to suppress enemy positions and troops in the open.

What is TP ammunition used for?

used for live fire gunnery. Have ballistic characteristics similar to service ammunition without CE projectile, fuze or service pentrator