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AUTOMATIC PISTOL
"STAR"
STAR, BONIFACIO ECHEVERRIA, S. A.
EIBAR (SPAIN)
MODELS
CALIBERS
SI .32 auto = 7,65 mm.
S. 380 auto = 9 mm. short.
A .38 auto = 9 mm. long
B 9mm. Luger = Parab.
P .45 auto =
M .38 Auto = 9 mm. long
LOADING AND FIRING OPERATION OF STAR PISTOLS
MODELS SI - S - A - B - M & P
TO LOAD THE MAGAZINE
Hold the magazine (53) in the left hand and place a cartridge on the front end of the
magazine follower (54) until it can be slid in under the lips of the magazine well. Place
another cartridge on top of the first one and force down and slide in. Follow this procedure
until the magazine contains whatever cartridges are to
be
used.
Insert the magazine in the grip and push in until the magazine catch (28) engages
in its slot in the magazine well.
TO LOAD THE PISTOL
Hold the pistol firmly
in
the right hand with the trigger finger outside the trigger
guard and grasp the slide (65) firmly at its serrated section with the left hand and draw to
the rear as far as it will go. (If the hammer (06) is cocked before the slide is withdrawn.
the slide will come back much easier because it has less spring tension to overcome.)
Release the slide. The recoil spring (83) pulls it forward. The front breechblock face
of the slide strips the cartridge from
between
the magazine lips and chambers it. The
extractor (66) set in the face of the breechblock, snaps into the extracting groove of the
cartridge case.
FIRING OPERATION
Hold the weapon firmly. Pressure on the trigger (19) will free the hammer (06) from
the sear (14) to permit the hammer spring (09) pushing upward on the strut (which is
2
attached to the hammer) to rock the hammer forward on its axis (11) to strike the firing
pin (70) mounted in its slot in the slide. The firing pin will fly forward to strike and fire the
cartridge in the chamber.
When the powder in the cartridge case is ignited by the primer it generates a huge
volume of gas. This gas expands in all directions, but as the least resistance is offered
by the bullet directly ahead of it, it starts the bullet down the barrel (61), the gas pressure
following along after it during its travel. Meanwhile, the outward thrust of the gases press
the brass cartridge case firmly against the walls of the firing chamber, preventing gas
from leaking back past the cartridge case.
The backward thrust of the gases inside the cartridge case press the case back
against the breechblock which, in these pistols, is part of the slide.
The barrel and slide are locked together by the locking ribs on the top of the barrel
which engage slots in the underside of the slide. They remain securely locked together
during the moment of high breech pressure. They go back for a short distance firmly
locked together.
As the bullet leaves the barrel and the chamber pressure falls to safe limits, the
resilient brass case contracts to its normal size, moving away from the walls of the firing
chamber. The barrel, swinging backwards on its link, which is firmly attached to the frame
by the slide stop pin passing through it, is forced downward by the continuing rearward
motion. The rear of the barrel strikes against its stop in the frame and its reaward action
is halted: while the slide continues on backwards in a straight line in its grooves in the
frame. The extractor, mounted in the breechblock face, carries the empty cartridge case
out of the firing chamber with it.
When the breechblock end of the slide passes completely over the mouth of the
magazine below, the ejection port in the right-hand side of the slide is fully exposed.
4
At thispoint the cartridge case strikes against the ejector in the frame which frees it from
the extractor and hurls it out the right-top-side of the pistol.
The barrel bushing (78) around the muzzle of the barrel, which also locks and
supports the recoil spring plug (84), presses back against the plug to compress the recoil
spring (83) below the barrel over the recoil spring guide (80). This stores up energy for
return movement of the slide.
The momentum of the slide strikes the hammer a sharp blow, driving it back to the
full-cock position where the sear spring (16) forces the point of the sear (14) into the
notch on the hammer to hold it at full-cock.
As the hammer (06) rocks back on its axis (11), it forces down the strut which is
attached to it and the bottom of the strut, being mounted in the hammer spring plunger
(10) above the hammer spring (09) in the grip, thrust downward to compress the hammer
spring to provide energy for the next forward motion of the hammer.
At the first rearward motion of the slide, the beveled niche in the underside of
the slide exerts pressure on the rounded head of the interrupter (25), forcing it down
against the sear bar (23) to diesengage it from the tail of the sear (14) while finger
pressure on the trigger is maintained.
The fore-end of the sear bar (23) presses against the trigger plunger (22) which
returns the trigger to firin position, under the pressure of its spring (21) to permit
engagement of the sear (14) when the slide next goes forward to the fully closed position
and finger pressure on the trigger is momentarily released.
The magazine spring (56) forces the follower (54) up, pressing the cartridges inside
the magazine well against the magazine retaining lips so that the head of the top cartridge
is in direct line with the breechblock which will strip it forward into the firing chamber
when the slide again goes forward.
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