A
rifle is gun that is held against the shoulder
when firing. It consists of four basic parts :
the barrel, the stock, the action and the sights.
The barrel is a strong steel tube
with spiral grooves, called rifling, cut along
the inside. The front end of the barrel is called
the muzzle, and the rear end is the breech.
The stock of a rifle helps keep
the rifle steady when firing. The butt of the
stock is placed against the shoulder when firing.
The front end extends under the barrel.
The action is the basic machinery
of the rifle. The action includes the parts that
feed a cartridge into the firing chamber, fire
the bullet, and eject the used cartridge.
The sights are used to aim the
rifle. When aimed properly, the rear sight, the
front sight, and the target should be in alignment.
A rifle is ready to fire when a cartridge has
been fed into the firing chamber. Then the rifle
is ready to fire when a cartridge has been fed
into the firing chamber. Then the rifle is aimed
and the trigger squeezed. The hammer or firing
pin strikes the rear end of the cartridge and
ignites the primer. The primer in turn ignites
the propellant powder in the cartridge. The powder
burns rapidly, creating pressure that drives the
bullet down the barrel.
The rifling in the barrel makes
the bullet spin. Without spinning, a bullet will
not stay pointed forward in flight, but will tumble
over and over. The spinning motion increases the
accuracy of a bullet.
NOTE : Not so
long ago, tanks were designated ‘male’ or ‘female’.
Each model of tank was made in two versions, one
lighter than the other. The heavier one was called
‘male’ and the lighter one was called ‘female’. |