internship for engineering students

1. INTERNSHIP REPORT
Small Arms Ammunition (SAA) Factory
Pakistan Ordnance Factories
Force Behind The Force
Submitted By:
MUHAMMAD SHAHZEB
xxx-xxxx-xx-xx
xxxxxxxxx@gmail.com

2. PREFACE
I am the student of BSc Electrical Engineering at SCET Wahcantt, and our
university assigned us to do internship for the period of 4 weeks to enhance our
practical skills in the industry / factory environment of any organization. The
objective of this internship program is expose our self in to practical atmosphere
where we can observe, analyze and even practice the application of the
professional knowledge that we have required during the course of our studies.
I was selected to do my internship in POF for 4 weeks in different
departments of POF SAA Factory. It gave me greater practical knowledge about
the production and also Electrical Engineering. In the following pages I have
narrated my experience, observation and all working activates which I observed.

3. Acknowledgements
I would like to thanks POF for providing me an opportunity to do an internship
in this organization. I am greatly thankful to all those persons who helped me in
visiting the shops during the internship.
A big contribution and hard work from AM Hassan Afzal and all supervisors
during this duration was very great indeed. All things during the program would
be nothing without the enthusiasm and imagination from all of you. Not forget,
great appreciation to the rest of “POF Small Arms Ammunition (SAA)
Factory” staff that help us from time to time during the internship. The whole
time really brought us together to appreciate the true value of friendship and
respect of each other
The special thank goes to my helpful supervisors,
▪ Electronics Lab Staff
▪ Electrical DO-2 Staff
▪ CO-8 Staff
▪ KRP-D-02 Staff
God Bless them All.

4. DURING MY INTERNSHIP PERIOD I HAVE DIFFERENT
DEPARTMENTS OF POF SAA FACTROY:
SR.# SHOPS DURATION
1. Electronic Lab 12-08-2022 To 21-08-2022
2. Electrical D-02 22-08-2022 To 27-08-2022
3. C-08 29-08-2022 To 02-09-2022
4. KRP-D-02 05-09-2022 To 08-09-2022

5. Table of Contents
Small Arms Ammunition (SAA) Factory..................................................................................7
Introduction: ............................................................................................................................7
SAA Factory Sections:...........................................................................................................7
FIRST WEEK............................................................................................................................8
ELECTRONIC LAB:.............................................................................................................8
Temperature controlloer: ....................................................................................................8
Frequency Controller:.........................................................................................................8
Proximity Sensors:..............................................................................................................8
PT-100 Sensor: ...................................................................................................................9
Variable Resistor: ...............................................................................................................9
Transistor:.........................................................................................................................10
Cards:................................................................................................................................10
WEEK TWO............................................................................................................................11
Electrical DO-2: ...................................................................................................................11
Motor Starting Method:....................................................................................................11
Find Speed of Motor:........................................................................................................11
Length of wire: .................................................................................................................12
Operating CCT of Star Delta:...........................................................................................12
Star Delta Contactor wiring:.............................................................................................12
Reverse Forward Operating Circuit:.................................................................................13
Reverse Forward Wiring Diagram: ..................................................................................13
Power Circuit of Motor: ...................................................................................................14
Electrical motor:...................................................................................................................14
Types of Motor:...................................................................................................................15
DC motors:.......................................................................................................................15
Universal motors:............................................................................................................15
AC motors: .......................................................................................................................16
Induction motor:.............................................................................................................16
Winding Machine:................................................................................................................18
WEEK THREE........................................................................................................................19
SAA (CO-8): ........................................................................................................................19
Manufacturing Facilities: .....................................................................................................19

6. Types of Machine in CO-8:..................................................................................................19
EDM Machine:..................................................................................................................19
CNC Lathe Machine:........................................................................................................20
Jig Boring Machine: .........................................................................................................21
Capstan Machine: .............................................................................................................21
CNC grinding machine:....................................................................................................22
Cylindrical grinding machine:..........................................................................................22
Types of Furnace:.................................................................................................................22
Electric Resistance Furnace:.............................................................................................22
WEEK FOUR ..........................................................................................................................23
KRP-DO-02:.........................................................................................................................23
SEQUENCE OF OPERATION: .......................................................................................23
Manufacturing Facilities: .....................................................................................................24
PRODUCTION METHOD:.................................................................................................26
Brass Strips:.....................................................................................................................26
Cup: ..................................................................................................................................26
Drawing ............................................................................................................................26
Annealing: ........................................................................................................................27
Wash & Dry......................................................................................................................27
Trim:.................................................................................................................................27
Indenting:..........................................................................................................................27
Heading:............................................................................................................................27
Stamping ( Piercing):........................................................................................................28
Wash & Dry......................................................................................................................28
Semi anneal: .....................................................................................................................28
Taper & Neck: ..................................................................................................................28
Wash & Dry......................................................................................................................28
H. T. R:.............................................................................................................................28
Gauging/Visual inspection: ..............................................................................................29
Tip Annealing:..................................................................................................................29
INSPECTION STAGES:.........................................................................................................29
Final Production:.................................................................................................................38
REFRENCES...........................................................................................................................38

7. Small Arms Ammunition (SAA) Factory
Introduction:
Small Arms Ammunition factory produces Ammunition such as cartridge case, bullets
etc. for small arms to meet the demand of armed forces. There are three types of plants are
placed in DO-2 section Turkish plant for 9mm bullets, KRP and new France plant. France plant
are not in working condition because plants steps not finish yet
SAA Factory Sections:
SAA Factory consists of various departments, major components of establishment which have
been visited by me are:
➢ Production set up
Production set up is established for production of various types of products according
to assigned targets.
➢ Maintenance department
Maintenance department is established for up keep and periodic maintenance of
production machinery so that the assigned production targets may completed in time.
➢ Quality control department
Quality control department is established for quality control of the product
manufactured by the production units.

8. FIRST WEEK
ELECTRONIC LAB:
Temperature controlloer:
Temperature controller is a device that are used to control
temperature in different machine. Basically this is a protection device to protect the machine
from damage or to protect against fire etc. Usually there are two types of value in temperature
SV (SET VALUE) we set this value by using up or down key. PV (PROCESS VALUE)
temperature controller are measure the process value of the temperature , process value means
the current value of the temperature that are measure by sensor when the process value is
increase by SV value the temperature controller is trip circuit for protection of the circuit.
We use different types of thermocouple in temperature controller
Calibration Temperature
Range
Standard Limits
Of Error
Special Limits
Of Error
J Type 0° to 750°C
(32° to 1382°F)
Greater of 2.2°C
or 0.75%
Greater of 1.1°C
or 0.4%
K Type -200° to 1250°C
(-328° to 2282°F)
Greater of 2.2°C
or 0.75%
Greater of 1.1°C
or 0.4%
E Type -200° to 900°C
(-328° to 1652°F)
Greater of 1.7°C
or 0.5%
Greater of 1.0°C
or 0.4%
T Type -250° to 350°C
(-418° to 662°F)
Greater of 1.0°C
or 0.75%
Greater of 0.5°C
or 0.4%
Frequency Controller:
Frequency controller is basically used to control frequency of
machine. There are two things we control in frequency controller first is Voltage control and
second is Frequency control. Frequency controller is used when machine start vibrating then
we can up or down frequency to control vibration.
Proximity Sensors:
• Inductive sensors (4-40mm)
• Ultrasonic sensor (3-30mm)
• Capacitive sensor (3-60mm)

9. PT-100 Sensor:
PT 100 temperature sensors are the most common type of platinum
resistance thermometer. Often resistance thermometers are generally called Pt100 sensors,
Diagram:
Variable Resistor:
Variable resistor is a resistor which the electric resistance value can be adjust on demand.
Circuit diagram:
Variable capacitor:
A variable capacitor is a capacitor whose capacitance can be adjusted within a certain range.
When the relative effective area between the pole metal plate and the distance between the
plates is changed, its capacitance changes accordingly.
Diagram:

10. Transistor:
A transistor is a miniature semiconductor that regulates or controls current or
voltage flow in addition amplifying and generating these electrical signals and acting as a
switch/gate for them.
Diagram:
Cards:
Cards were used long time ago but now we use PLC in their place because one card
are usually used for one operation for different we used different so cards are expensive because
when cards are working they produce more heat. So to keep their temperature low we have to
use AC so the overall system is expensive then PLC.
Diagram:

11. WEEK TWO
Electrical DO-2:
Motor Starting Method:
There are five types of motor starting method are written below.
1. DOL(Direct On-Line)
2. Resistor method
3. Star Delta method
4. VFO drive
5. Servo drive
DOL Method:
DOL stands for Direct On-Line. The DOL starter is one of the types of Motor
starter which connects the motor to the line voltages directly. To start the induction motor in
the simplest and cheapest way this type of starter is used.
This stator is also used in CO-3 Junker Furnace.
Resistor Method:
In this method external resistance is connected in series with each phase of
the stator winding during starting. The external resistance causes voltage to drop across it so
that reduced voltage available across the motor terminals. Hence, the starting current is
reduced.
Star Delta Method:
A star delta starter is the most commonly used method for the starting of
a 3 phase induction motor. In star delta starting an induction motor is connected in through a
star connection throughout the starting period. Then once the motor reaches the required speed
then the motor is connected in through a delta connection.
This stator is used in DO-2 3phase inductions motors.
Find Speed of Motor:
To find the speed or RPM of motor we need to know the frequency
of motor and also the poles of motor.
Formula:
F= frequency
P= No of poles
Speed of motor = 120F/p

12. Length of wire:
Length of wire =
𝜋𝑑2
4
Operating CCT of Star Delta:
Circuit diagram:
Star Delta Contactor wiring:
Circuit Diagram:

13. Reverse Forward Operating Circuit:
Diagram:
Reverse Forward Wiring Diagram:

14. Power Circuit of Motor:
C.B = Circuit breaker
M.C = Magnetic contactor
O.L =Overload relay
Electrical motor:
Electric motors operate through the interaction of magnetic fields and
current-carrying conductors to generate force. The reverse process, producing electrical energy
from mechanical energy, is done by generators such as an alternator or a dynamo. Some electric
motors can also be used as generators. Electric motors and generators are commonly referred
to as electric machines.

15. Types of Motor:
There are three types of motor,
➢ DC Motors
➢ Universal Motors
➢ AC Motors
DC motors:
DC motors have AC in a wound rotor also called an armature, with a split ring
commutator, and either a wound or permanent magnet stator. The rotor consists of one or more
coils of wire wound around a laminated "soft" ferromagnetic core on a shaft; an electrical
power source feeds the rotor windings through the commutator and its brushes, temporarily
magnetizing the rotor core in a specific direction. The commutator switches power to the coils
as the rotor turns, keeping the magnetic poles of the rotor from ever fully aligning with the
magnetic poles of the stator field, so that the rotor never stops but rather keeps rotating as long
as power is applied.
Universal motors:
A series-wound motor is referred to as a universal motor when it has
been designed to operate on either AC or DC power. The use of AC to power a motor originally
designed to run on DC would lead to efficiency losses due to eddy current heating of their
magnetic components, particularly the motor field pole-pieces that, for DC, would have used
solid (un-laminated) iron.

16. AC motors:
An AC motor has two parts: a stationary stator having coils supplied with
alternating current to produce a rotating magnetic field, and a rotor attached to the output shaft
that is given a torque by the rotating field.
Induction motor:
An induction motor is an asynchronous AC motor where power is
transferred to the rotor by electromagnetic induction, much like transformer action. An
induction motor resembles a rotating transformer, because the stator (stationary part) is
essentially the primary side of the transformer and the rotor (rotating part) is the secondary
side.
Types of Induction Motor:
Induction motors may be further divided into squirrel-cage motors and wound-rotor motors.
▪ squirrel-cage motor
▪ wound-rotor motor
Squirrel-cage motors have a heavy winding made up of solid bars, usually aluminum or copper,
joined by rings at the ends of the rotor.
In a wound-rotor motor, the rotor winding is made of many turns of insulated wire and is
connected to slip rings on the motor shaft.
Squirrel-cage motor wound-rotor motor

17. Types of single phase winding connection:
There are common two type of winding...
End-End connection.
End-Begin connection.
End to End Connection:
Usually in 1-phase stator winding, Coil are connected end-end i.e. end of one coil is connected
to the end of other coil and the begin of one coil is connected to the begin of other.
Number of poles is equal the number of sets of coils.
No. of Poles=No. of Sets
End to Begin Connection:
Usually in 1-phase rotor winding, Coil are connected end-begin i.e. end of one coil is connected
to the begin of other coil and the begin of one coil is connected to the end of other.
Number of poles is two times the number of sets of coil.
No. of Poles=No. of Sets x 2

18. 3-Phase winding:
In this shop 3-phase motor is also winding.
From this diagram, end of one coil is connected to the begin of other makes one phase. There
must be two coils gap between them for winding. The start of second phase coil with the gap
of one coil from start of 1-phase and so on.
Winding Machine:
Winding machines is used to make coils for winding. Some machines
are for thin wires and some are for thick wires. There is a counter in every machine which
counts the number of coils.
This machine is for making coil of thick wire. Thin coil making machine.

19. WEEK THREE
SAA (CO-8):
CO-8 [Tool Room] Section of S.A.A is manufacturing tooling for production
units such as dies and punches of various shapes, size and calibers.
Manufacturing Facilities:
Tool Room CO-8 is equipped with conventional and latest
modern CNC machines which are used for manufacturing quality and standard tooling which
ultimately proves helpful for quality products.
Types of Machine in CO-8:
➢ EDM machine
➢ CNC Lathe Machine
➢ Jig boring machine
➢ Capstan machine
➢ CNC grinding machine
➢ Cylindrical grinding machine
➢ Center less grinding machine
➢ Surface grinding machine
➢ TC internal grinding machine
➢ Milling machine different types
➢ Turning machine
EDM Machine:
EDM (Electric discharge machine) also known as CNC wire cut machine.
Which is working base on electro sparking principle. If there is a load, the wire EDM will move
slowly towards the electrical conductive work piece. The wire will be energize and create
electrical spark between the wire cut CNC machine and work piece. The electrical spark created
between the wire and work piece will erode some small amount of work piece and flush away
by the deionized water to form the spark gap between the wire and the work piece. The
electrical sparking process will stop if reach the required depth. The spark gap size can be
controlled as small as0.0127mm. If there is no load the machine will run only one cycle until
the required depth and stop.

20. Diagram:
CNC Lathe Machine:
A CNC lathe is basically the same as a conventional lathe. The major
differences are:
▪ It is controlled by a computer program
▪ Does not have the manual hand wheels
▪ Has tool posts that provide placing for multiple cutting tools
▪ Is usually fully enclosed with sliding doors
The material to be machined into a component along with the drawing of the component is
evaluated and a program is written on a computer for machining the component in various steps
with the different required tooling.
Once the program is done, it is transferred to the CNC. The program can be directly
programmed into the CNC too. Tooling is then selected, mounted and set into the CNC's
database so the machine knows exactly where the tip of the tool is in relation to the work piece.
Diagram:

21. Jig Boring Machine:
A metal-cutting machine for finishing holes, planes, and slots with a
highly precise location of centers or surfaces without the use of special attachments for tool
alignment.
Jig-boring machines are used for boring, drilling, counter-sinking, reaming, milling, and other
types of finishing in individual and small-scale production during the manufacture of cutting
and measuring tools, jigs, dies, and key components of machines and instruments. Devices with
stable and adjustable end gauges and indicator sensing units are used on jig-boring machines
for precise measurements; also used are lead screws with dials and a vernier, which are
equipped with error-elimination compensators, and graduated shafts with optical measuring
instruments. There are two types of these machine tools: double-sided (gantry) machines with
a one-movement table and open-sided (single-sided, overhanging) machines with a two-
movement table. The machines are installed in insulated areas in which a constant temperature
of 20°C is maintained. Jig-boring machines are operated by highly skilled workers.
Capstan Machine:
A capstan lathe is a milling machine used to create the same parts over
and over again. The cutting bits are mounted on a rotatable turret known as a capstan, which
allows the user to quickly change the orientation of the bits for cutting without having to take
off the first bit and then mount the second. A piece of raw material, sometimes known as a
blank, is mounted into the capstan lathe and is then spun at high speed. The cutting tools,
sometimes known as knives, are then used to cut into the blank to create a new shape or design.

22. CNC grinding machine:
CNC grinding machines are machine tools which use a
rotating grinding wheel to achieve material removal on a metallic work piece by means of
cutting. Grinding machines are mostly used for the hard-fine machining of work pieces (parts).
The surface quality which can be achieved is very high, and grinding machines thus almost
always find application in modern industry as a finishing process. Furthermore, through the
increased performance of the grinding tools, grinding machines can now be used to achieve
high material removal during production grinding.
Cylindrical grinding machine:
The Cylindrical grinder is a type of grinding
machine used to shape the outside of an object. The cylindrical grinder can work on a variety
of shapes, however the object must have a central axis of rotation. This includes but is not
limited to such shapes as a cylinder, an ellipse, a cam, or a crankshaft.
Cylindrical grinding is defined as having four essential actions:
1. The work (object) must be constantly rotating
2. The grinding wheel must be constantly rotating
3. The grinding wheel is fed towards and away from the work
4. Either the work or the grinding wheel is transverse with respect to the other.
Types of Furnace:
There are two types furnace are used in CO-8 (Tool Room) are written
below
• Electric Resistance furnace
• Junker furnace
Electric Resistance Furnace:
An electric furnace in which the heat is developed by the
passage of current through a suitable internal resistance that may be the charge itself, a resistor
embedded in the charge, or a resistor surrounding the charge. Also known as electric resistance
furnace.
An electric furnace in which heat is generated by conductors that offer resistance to the passa
ge of a current through them. Resistance furnaces are used here for jobs hardness and shape
conversion, and also to dry or melt materials.
Resistance furnaces are used extensively because of their numerous advantages. Any
temperature up to 900°C can be obtained in the furnace chamber but they use 860°c. Material
are used in this furnace are special salt for job hardness and use for electric current is nicrome
element, this furnace contain 3phase AC power supply. When we start furnace first of all we
start DOL contactor to start the furnace. Contactor is used to protect the furnace there are also
used temperature controller for temperature and for set value.

23. Diagram of a batch-type indirect-heat resistance chamber furnace:
(1) heating elements, (2) refractory lining, (3) heat insulation, (4) refractory hearth plate
WEEK FOUR
KRP-DO-02:
KRP-DO-2 section produces 7.62×51mm ball cartridge (empities) for
small arms ammunition. Sequence of operation is placed below.
SEQUENCE OF OPERATION:
CUP Annealing 1st Draw
Annealing 2nd Draw Annealing
Final draw Wasg & Dry Trim
Heading Indenting Lub & Dry
piercing & Stamping Wash&Dry Semi Annealing
H.T.R Wash & Dry Taper & Neck
Gauging / Visual inspection Tip Annealing

24. Manufacturing Facilities:
Coupling press machine:
A coupling is a device used to connect two shafts together at their ends for the purpose of
transmitting power.
The Air Pressure coupling machine press has inspection lights and a practical reference bar to
enable rapid, perfect positioning of the frame on the glass.
The two mobile bars fitted with leveling feet, one on the rear stationary panel, the other on the
front mobile panel, and the possibility of stopping the glass at variable positions, allows
different sized glass sheets to be coupled for the production of structural glass.
Heading machine:
The machine is designed compact for working while in operation for special Quality Screws.
Each part of the machines is standardized manufactured from the best material and hence
assured for longer life.
1. One Set of Forging Tools for One Size of Standard Part.
2. One Set of Standard Tools with One Set of Special Adjusting Tools.
3. One Wire Stand.

25. Capping machine:
Capping machine can handle flat caps, sport caps, Yorker caps, metal lids and any other caps
that can be placed or picked off at a 30 to 40 degree angle without any special cap or bottle
handling change parts.
This capping machine can handle a cap size range up to 120 mm including child resistant caps.
This machine can handle container sizes ranging in: (height) 1-1/2" to 15" (width) 1/2" to 7" in
plastic, metal, or glass. As long as the bottles are fairly rigid and can be gripped by the belts
that draw the bottle through the tightening area.
Torque control is achieved by either spring loaded clutches or air clutches that cause the
tightening surface against the cap to release once the target torque has been reached.
Final draw machine:
Final draw press machine mechanically driven high speed draw press with independently
adjustable pneumatic drawing cushions. It executes the re-draw operations of long and extra-
long aluminums caps. Pinch trimming to the final cap length and the waste ring separation on
the final draw are included in the equipment.

26. PRODUCTION METHOD:
Brass Strips:
Brass or Gilding Metal (an alloy of Copper and Zinc) are taken from Brass Mill for Production
of different calibers. Initial size of strip is checked before draw operation.
Cup:
The production of a hollow component by Means of punch and die, where strips are Fed in
the die of mechanical press, punch is operated on strip and cup is formed.
Drawing
In the drawing process the materials squeezed through a die under pressure of mechanical
press. This progressively stretched longer and repeated four times.
Cup 1st draw 2nd Draw Final Draw

27. Annealing:
After every draw annealing of the case is done because due to cold process on the case its
grain structure is deformed.
Annealing is used to refine the structure by making it homogeneous, and improve cold
working properties for subsequent operation on it.
In this process we bring the case in annealing furnace and heat them up to a specific
temperature and then cooling, after completion of annealing process the annealed case are
then washed.
Wash & Dry
Wash & Dry is the process of maintenance where we wash the shells.
Trim:
Excessive material of the job is cut off to get required length. This is called trimming. Job is
held in collets and by a simple parting tool this trimming operation is carried out.
Before trimming After trimming
Indenting:
This is the operation by which we put a deformation or dent in the dome of job so that the
gun can grip it.
Heading:
The semi- sphere like shape of case is converted into flat shape in this operation.
Before heading After heading

28. Stamping ( Piercing):
In this operation POF Stamp is punched and fire holes are made on the case.
Wash & Dry
Semi anneal:
In this process half of the case is annealed.
Taper & Neck:
Mouth of these cases is tapered a little in order to create maximum gas pressure at the time
of the fire and also fix the shell.
Wash & Dry
H. T. R:
Head turn and riming to give the candle shape to the case is called Head Turn and on the other
hand making of rim shape is called riming.

29. Gauging/Visual inspection:
After all manufacturing process the case is passing out from Gauging / visual inspection in this
case diameter, weight, scratches, and length is checked.
Tip Annealing:
At the end the tip of the case is annealed because bullet is inserted into its mouth after filling.
INSPECTION STAGES:
INSPECTION STAGE 7.62×51mm 1ST
DRAW
SR# NO NOMENCLATURE GAUGE NO DIMENSIONS
1 EXT DIA A-9916 H.555” L.551”
14.097MM 13.995MM
2 WALL THICKNESS B-2457 H.067” L.061”
1.702MM 1.549MM
3 WALL VARIATION SKIG-19921D-02 .006” .152MM
4 SETTING PIECE .1516”/3.850MM

30. INSPECTION STAGE 7.62×51mm 2ND
DRAW
SR# NO NOMENCLATURE GAUGE NO DIMENSIONS
1 EXT DIA A-12216 H0.505” L0.502”
2 WALL THICKNESS B-2457 H0.025” L0.021”
3 WALL VARIATION 0.004”
4 DOME THICKNESS SK/G19993-DO-2 LO.150(3.81MM)
H0.160(4.06MM)

31. INSPECTION STAGE 7.62×51mm FINAL DRAW
SR# NO NOMENCLATURE GAUGE NO DIMENSIONS
1 EXT DIA A-11173 H0.468” L0.4668”
2 WALL THICKNESS B-2457 H0.0125” L0.10105”
3 WALL VARIATION B-2457 0.002
4 DOME THICKNESS WG-1371 L0.155”(3.93MM)
H-0.165(4.19MM)
SETTING PIECE DOME SK-G990 0.160” 4.06MM
INSPECTION STAGE 7.62×51mm CASE TRIM
SR# NO NOMENCLATURE GAUGE NO DIMENSIONS
1 INT LENGHT 23/G-40144 H1.835” L1.815”
46.101MM 46.609MM

32. INSPECTION STAGE 7.62×51mm CASE INDENT
SR#
NO
NOMENCLATURE GAUGE
NO
SETTING
PIECE
DIMENSIONS
1 EXT DIA A-7167 L0.468” H0.470”
2 BRIDGE THICKNESS H-3490 PS-2130.55MEAN H0.050” H0.060”
3 HEIGHT OF ANVIL A-9001 L0.080” H0.087”
4 CONCY-INDENT TO
BODY
H-3514 0.004”/0.102MM
5 DIA AT TOP H RG-548 H0.218

33. INSPECTION STAGE 7.62×51mm CASE HEAD
SR#
NO
NOMENCLATURE GAUGE
NO
SETTING
PIECE
DIMENSIONS
1 CAP CHAMBER
DIA LOW
H-3673 PS-2785 L0.2141”
2 DEPTH OF ANVIL H-3496 PS-2132 L0.050” H0.4695”
3 UNDERHEAD DIA A-7168 L0.468” H0.4695”
4 BOTTOM DIA OF C.C.H A-9006 H 0.2155”
5 DEPTH OF C.C H-3494 PS-2131 L0.125” H0.135”
6 FULL FORM DIA H-5006 L0.2155
7 TOP DIA OF C.C HIGH RG-548 H0.218”
8 MIDDLE DIA OF C.C 23.G/41184 L0.2155” H0.2165”
9 TOP DIA OF CC ‘L’ H-3525 SK/G-1005 L0.2177

34. INSPECTION STAGE 7.62×51mm CASE PIERCE & STAMP
SR# NO NOMENCLATURE GAUGE NO DIMENSIONS
1 FIRE HOLE H-3512 L0.030” H0.050”
2 FULL FORM AT MID DIA H-5006 L0.2155”
3 MIDDLE DIA OF C.CHAMBER 23.G/41184 L0.2155” H0.2165”
4 BOTTOM DIA A-9006 0.2155”

35. INSPECTION STAGE 7.62×51mm TAPPER
SR#
NO
NOMENCLATURE GAUGE
NO
DIMENSIONS
1 FULL FORM SOCKET A-9403
2 STRAIGHT EDGE H-3367
3 SECTION SOCKET A-9012
4 LENGTH TO
SHOULDER
H-3500 H 01.6234” L1.628”
4 (b) INDICATOR B-8000
4 (c) SETTING PIECE DS-2133 MEAN 1.631”
5 DIAS AT TAPER H-3498 .4540” .461” .4671”
5 (b) STEPPED PLATE H-5000
6 INT MOUTH PLUG ‘H’ H-3509 H-0.3073
7 INT MOUTH PLUG ‘L’ H-5004 L.3063

36. INSPECTION STAGE 7.62×51mm CASE H.T.R
SR#
NO
NOMENCLATURE GAUGE
NO
DIMENSIONS
1 GROOVE DIA ‘H’
WIDTH ‘L’
H-5001 WIDTH DIA
L0.055” H0.409”
2 GROOVE DIA ‘L’ H-3504 L0.402
3 GROOVE WIDTH ‘H’ A-3505 H0.059
4 RIM DIA H-5002 L0.466” H0.473”
5 RIM THICKNESS
SETTING PIECE
BS-8000
PS-2747
L0.047” H0.054
0.05054
6 CONCY OF RIM WITH
BODY
H-3508
7 MOUTH THICKNESS H-5007 L0.014” H0.016”
8 LENGTH A-9044/
H-5005
L2.00 H2.015
9 FULL FORM H-3502

37. INSPECTION STAGE 7.62×51mm GUAGE & VISUAL
SR#
NO
NOMENCLATURE GAUGE
NO
SETTING
PIECE
DIMENSIONS
1 OVERALL LENGTH H-5005 L2.00” H2.015”
2 RIM DIA H-5002 L0.466” H0.473”
3 RIM THICKNESS H-5163 MEAN 0505” L0.047” H0.054”
4 CAP CHAMBER DIA H-3525 PS-2013 H 0.2165” L0.2155”
5 CAP CHAMBER DEPTH H-3494 PS-2131 L0.125” H0.135”
6 ANVIL DEPTH H-3496 PS-2132 L0.050” H0.055”
7 GROOVE DIA HIGH H-5001 H0.409”
8 GROOVE DIA LOW H-3504 L0.402”
9 GROOVE WIDTH HIGH H-3505 SK/G-1005 H0.059
10 FIRE HOLE DIA H-3512 L0.030” H0.050”
11 PROFILE GUAGE
STRIGHT FDGE
H-3528
H-3367
FULL FORM
12 PROFILE GUAGE H-3502 FULL FORM

38. Final Production:
▪ 7.62 X 51 MM BLANK
Cartridge 7.62 x 51 mm Blank for use in any NATO Standard 7.62 mm Caliber
weapons, new or old, in single short or burst in diverse field Conditions.
CALIBERS LEN LENGTH G MATERIAL
7.62 x 51 mm Blank 67.7 ~ 68.7 mm Brass
REFRENCES
1. http://www.pof.gov.pk/index.aspx

39. THANK YOUǃ