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muhammad-hamid
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A cartridge packages the bullet, gunpowder and primer into a single metallic case precisely made to fit the firing chamber of a firearm .
SHOTGUN CARTRIDGE
IT CONSISTS OF A METAL CYLINDER WHICH IS CONTINUOUS WITH A CARDBOARD OR PLASTIC CYLINDER
THE CASE IS RIMMED WHICH KEEPS THE CARTRIGE CORRECTLY IN THE CHAMBER AND FACILITATES EXTRACTION.
1. KEEPS THE VARIOUS COMPONENTS IN PLACE
2. PREVENTS THE BACKWARD ESCAPE OF GASES
3. PROVIDES WATERPROOF CONTAINER FOR GUN POWDER
CASE
FILLING OF CARTRIDGE FROM BASE ARE :-
1. PERCUSSION CAP
2. GUN POWDER
3. FELT WAD WITH CARDBOARD DISC
4. THE SHOT
5. RETAINING CARDBOARD DISC
THE DIAMETER OF WADDING USED IN THE CARTRIDGE IS GREATER THAN THAT OF THE BORE OF THE GUN.
WAD ACTS AS THE PISTON AND SEALS THE BORE COMPLETELY THUS PREVENTING THE EXPANDING GASES FROM ESCAPING AND DISTURBING THE SHOT CHARGE.
WADS
THE WAD CONTAINS GREASE WHICH LUBRICATES THE BORE AFTER FIRING OF EACH ROUND
THE GUN POWDER IS PROTECTED FROM GREASE BY THIN GREASE PROOF CARD WAD
WADS
THE SHOT CONSISTS OF SEVERAL HUNDRED SMALL LEAD SHOTS .
NUMBER DEPENDS ON :-
•THE SIZE OF THE LOAD
•SIZE OF THE INDIVIDUAL PELLET
SHOT
THE BLOW OF FIRING PIN ON THE PRIMER CUP CRUSHES THE PRIMING MIXTURE AGAINST THE ANVIL CENTER AND BURNS IT ,WHICH THEN FLASHES THROUGHT THE FLASH HOLES AND BURNS THE POWDER
PRIMER
IN RIFLE CARTRIDGE PRIMER CUP IS FITTED IN BATTERY CUP.
THE BATTERY CUP SUPPORTS THE ANVIL AND PROVIDES FLASH HOLES
PRIMER
BLACK POWDER •IT IS DESIGNATED AS FG,FFG,FFFG
•THE MORE NUMBER OF F’s , THE FINER ARE THE GRAINS AND THE FASTER THEY BURN
•IT BURNS WITH PRODUCTION OF HEAT ,FLAME AND SMOKE
•1 GRAM OF POWDER PRODUCES 3000 TO 4500 CC OF GAS
SMOKELESS POWDER
•THEY PRODUCE MUCH LESS SMOKE AND FLAME AND ARE MORE COMPLETELY BURNT THAN BLACK POWDER
• 1 GRAM PRODUCES 12000 TO 13000 CC OF GASES
•THE COLOUR VARIES FROM BRIGHT ORANGE TO BLUISH BLACK
BULLETSTHE TRADITIONAL BULLET IS MADE OF SOFT METAL AND HAS A ROUNDED NOSE .
THE METAL USED IS LEAD
THE MISSILE IS THE COMMON BULLET USED IN PISTOLS AND RIFLES.
IN PISTOL THE BULLET IS SHORT AND THE POINT IS ROUNDED
IN RIFLES THE BULLET IS ELONGATED AND POINTED
FULL METAL JACKET BULLET
•COVERING IS MADE WITH TOUGH AND HEAVY JACKET COVERS
•BASE HAS SOFT METAL INTERIOR
•THE TOUGH METAL MAY BE MADE OF STEEL,ZINC,COPPER,NICKEL
SEMI-JACKETED BULLET
•IT HAS A TOUGH JACKET BUT THINNER COMPARED TO FULL METAL JACKET BULLET
•THE NOSE IS FULLY OR PARTLY EXPOSED
A DUMDUM BULLET IS ONE WHICH FRAGMENTS EXTENSIVELY UPON STRIKING
INCENDIARY BULLETS CONTAIN PHOSPHORUS SO IT CATCHES FIRE ON HITTING THE TARGET
FRANGIBLE BULLET IS MADE OF METAL WHICH FRAGMENTS ON STRIKING
MECHANISM OF DISCHARGE OF PROJECTILE
TRIGGER IS PULLED
FIRING PIN STRIKES THE PRIMER CAP
THE PRIMING EXPLODES
SENDS FLASH TO THE POWDER FILLED CASE
POWDER CHARGE BURNS
LARGE AMT OF GAS PRODUCED INCREASES PRESSURE
MECHANISM OF DISCHARGE OF PROJECTILE
THE CARTRIDGE CASE SWELL OUTWARDS
HOLD ON THE BULLET IS RELEASED
BULLET IS FORCED INTO THE BARREL
THE BULLET IS FOLLOWED BY • THE BLAST OF HIGLY COMPRESSED HOT GAS
• THE PARTICALS OF POWDER
• SMOKE,FLAME AND FRAGMENTS OF METAL AND GREASE