Annex B Ammunition Capabilities/Ballistics

Question 1

The M791 APDS-T has a __ __ __ penetrator.

Answer 1

Solid Tungsten Alloy

Question 2

The discarding SABOT leaves the barrel at _____ on both sides of the gun-target line for ______>

Answer 2

60 degrees 100 meters

Question 3

list the muzzle velocities for each of the rounds used for the 25mm.

Answer 3

M791, 1345 +/+20 mps (meter per second), M792 1,100 +/-20 mps. M793 TPT 1,100 (+/-20)mps. M910 1,525 +/- 20mps. MALA 1,385 +/-20 mps

Question 4

what is the tracer burn time for the M791 APDS-T?

Answer 4

1.7 seconds

Question 5

Name the 6 types of the 25mm ammo by name and nomenclature

Answer 5

M791 Armor-Piercing sabot with tracer (APS-T)
M919 Armor-Piercing fin-stabilized Discarding Sabot with tracer (APFSDS-T)
M792 high explosive incendiary with tracer (HEI-T)
M910 target practice discarding sabot with tracer (TPDS-T)
M793 target practice with tracer (TP-T)

Question 6

define grazing impact

Answer 6

the projectile may detonate if impact is sufficient enough during a direct _______???

Question 7

List the maximum effective range for each of the 25mm rounds.

Answer 7

M791 2000 meters
M919 2500 meters
M910 2000 meters
M793 1600 meters

Question 8

the M792 HEI-T round has ____ grams of _____.

Answer 8

32 HEI-MIX

Question 9

what causes the sabot to discard

Answer 9

set back, centrifugal force, & air pressure.

Question 10

list the 3 ways the M792 HEI-T round detonates.

Answer 10

Direct impact, grazing impact, self destruct.

Question 11

what is the bursting radius for the M792 HEI-T

Answer 11

SM 16 - 200 meters

Question 12

what stabilizes the m919 APFSDS-T while in flight

Answer 12

screw on fms

Question 13

List the tracer burn range for each of the 25mm ammunition

Answer 13

M791 2000m 
M792 2000m 
M793 2000m 
M910 2000m
M919 2500m

Question 14

what round is ballistically matched to the M792 round?

Answer 14

M793 TP-T

Question 15

How is the M791 stabilized while in flight

Answer 15

spin- stabilized

Question 16

what is the nomenclature of the fuse in the M792 round

Answer 16

M758 fuse

Question 17

what is the M919 penetrator made of ?

Answer 17

depleted uranium

Question 18

M919 penetrates solely by _____ _____ _____

Answer 18

kinetic energy

Question 19

Define ballistics

Answer 19

Science of the motion of projectiles.

Question 20

Define line of sight

Answer 20

straight line between the gun sight and the target.

Question 21

Define line of elevation

Answer 21

prolongation of the line running through the axis of the gun bore.

Question 22

Define line of departure

Answer 22

prolongation of line running through the axis of the gun bore as the projective leaves the muzzle.

Question 23

Define vehicle gun jump

Answer 23

angle measure in mils, between the line of departure of the projectile and the line of elevation.

Question 24

Define trajectory

Answer 24

path of the projectile from the muzzle of the weapon to the first point of impact.

Question 25

Define range

Answer 25

weapon to target distance.

Question 26

Define superelevation

Answer 26

angle measure in the mils, between the line of sight and the line of elevation.

Question 27

Define DR/DSE

Answer 27

change in range for a'mil change in super elevation.

Question 28

Define DH/DR

Answer 28

change in height for a 100 meter change in range.

Question 29

Define drift

Answer 29

number of mils the projectile moves to the right of the gun- target line because of the spin caused by the firing.

Question 30

Define time of flight

Answer 30

amount of time it takes a projectile to reach a target at a selected range.

Question 31

Define 10 km/h cross wind deflection

Answer 31

effect of wind defection assumes 10 km/h cross wind the correction is applied into wind. When wind speed is different from 10 km/h the point of aim must be calculated.

Question 32

Define Maximum ordinate

Answer 32

maximum height the projectile travels above the line of sight at a given range.

Question 33

Define range to maximum ordinate

Answer 33

range at when the maximum ordinate is reached. out to this range the projectile is ascending. the range to max ordinate always occur shortly beyond half the target range.

Question 34

Define angle of fall

Answer 34

number of mils between the projectile is trajectory at impact and the line of sight

Question 35

Define remaining velocity

Answer 35

speed of the projectile in meters per second at a selected range.

Question 36

State the formula to convert Mils to degrees

Answer 36

mils x 0.05625 = degrees

Question 37

___________ is the path of the projectile from the muzzle of the weapon to the first point of impact.

Answer 37

.

Question 38

APDS-T maintains its accuracy out to _______ metes

Answer 38

2200

Question 39

what is the max effective range of the M793 round?

Answer 39

1600m

Question 40

what are the characteristics of the 7.62mm armor piercing round

Answer 40

tip painted black.

Question 41

list the 5 ammunition types associated with the M240 series Machinegun

Answer 41

M62 tracer, tracer (M62 over head fires) Bull (M80) Armor piercing M61 Dummy M63

Question 42

what is the purpose of the tracer cartridge used with the M240 series machinegun.

Answer 42

for observation of fire incendiary effect signal and marking target.

Question 43

what is the max effective range for the M240>

Answer 43

900 meters coax (sight and tracer limited)

Question 44

what is the max range of the M240 | HW2Q1

Answer 44

900 meters (?)

Question 45

what is the muzzle velocity for the M240

Answer 45

2750 feet per second.

Question 46

List in writing the 6 ammunition classifications used with the m240 series machinegun

Answer 46

.

Question 47

State the description (purpose) of the Ball Cartridge used with the m240 series machinegun

Answer 47

for observation of fire incendiary effect signal and marking target

Question 48

State the physical characteristic of the Ball (M80) Cartridge used with the M240 MG

Answer 48

.?

Question 49

State the physical characteristic of the Tracer (M62) Cartridge used with the m24 series machinegun

Answer 49

.

Question 50

list the 5 parts of the TP-T round

Answer 50

.

Question 51

at wgat range does m793 lose its effectiveness

Answer 51

1600 m (?).

Question 52

what round shares the same ballistics as M791

Answer 52

.

Question 53

Explain how armor piercing ammunition penetrates the target

Answer 53

.