Semi-Automatic Rifle m42

T1
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SHORT DESCRIPTION
Back piece
Hand guard
Lower ring with sling swivel
General features.
~
e recoil brake
Safety lever
Principle of design.
Sa fely st ick
Recoil spring
Sem i-automatic, gas operated rifle, tilt-locked bo lt, pr iming by
hammer, firing safety, muzzle recoil brake, and bayonet fastening .
Upper ring
Gas pipe
~
Bo lt and receiver completely covered and protected against dirt.
t sight wi th guard
Rifle and component parts are shown in fig. 1-2.
~~
,
Pis tol grip
Cartridge feed .
M agazine holding 10 rounds, to be
inserted in the weapon.
I Cleaning
rod in two piecrs
Fig . 2.
Ballistics.
Weight of bullet
Calibre
Calibre
7,9 m
6,5 mm
12,8 grs
9,0 grs
M uzzle velocity
740
m/sec.
760
m/sec.
M uzzle energy
360
kgm
265
kgm
Impact energy ot 700 m
100
kgm
60
kgm
Range, height of bullet path not
exceeding 1,5 m
Fig. 1.
Ammunition .
Range.
Calibre
The weapon is manufactured for
two types of ammunition:
600 m
M aximum range
7,9
3500
6,5 mm
3300
Practicable range
7,9 mm rifle ammunit ion, and
against shooters in firing position
300-400 m
6,5
against shooters moving forward
600-700 m.
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m
Handling.
Sights.
General note.
Rear sight and front sight, open type.
The weapon works with gas-operated mechanism. A long with
Re ar sight : Excenter flap sight, a d justable by means of special
discharging the empty cartridge case is automatically ejected and
drum for every 100m from 100 to 700 m.
the wea po n reloaded .
Front sight: Post sight, protected by front sight guard ring .
Manner of car ry ing.
Front sight adjustable laterally by means of f ront sight adjusting
Under movements the weapon is carried on the bock or with the
screw.
sling over the shoulder, when combat is ex pected, in the hand .
Safety .
The weapon con be adjusted to safety by means of a safety lever
Rate of fi re.
on the bock piece Ifig. 3). When ad jus ing to safety, the safety
Practicable range of fire: 30--40 well-aimed rounds per min.
lever is put to the right, when releasing safety, to the lef .
Automatic safety.
On account of its design the weapon is automatical ly safe in
Dimensions a nd w eights.
Len gth
Ca libre
7,9 mm
6,5 mm
1215 mm
Height
Width
Calibre
170
........ .
Weight except sling ...... . .. .
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following respects:
a) Sa fety against premo ure firing
b)
c)
64
4400 grs
Accesso ries .
Wiper !inserted in the weapon)
Sling
Cleaning and spore ports set in cloth case, weight about 300 grs,
dimensions 10 X 6 X 4 em, containing : Oi l box with brush, oil con,
wiper for chamber, combination tool, extractor for crocked cartridge cases, sheet box, containing: 1 firing pin with spr ing, 2
extractors, 1 extractor pi n with spring, l firing pin peg, 1 tool for
removing extractor.
fi g. 3.
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blind firing
unintentional unloading.
loading .
Release safety.
When
the
been
fired,
locking
Move cover forward as long as
possible and pull subseq uently
lost
cartridge
has
the bolt and the
piece
are
cocked
in
rear position by the bolt catch
{safety against blind firing).
bock to rear position {fig. 4 and
5).
Put a
before
cartridge clip from
in
the
recess
for
the
The magazine is then filled as
described above.
Fig . 8.
cartridge clip frame, introd ucing
the upper knobs of the frame in
the grooves on the inside of the
projecting
ears
of
the
cover
Removing cartridge from
chambe r.
{fig. 6).
Make sure the weapon is adjust -
Push cartridges down in maga-
ed to safety.
zine with the right hand in the
Push
cover
forward
with
the
same way as on mouser rifles
right hand as long as possible,
{fig . 7).
and
Take away cartridge frame.
{fig. 9).
Load with another cartridge clip.
Move cover backwards but not
Push
cover
forward
with
the
right hand as long as possible
{3-4 mm) and pull subsequently
bock, at which
locking piece
and bolt are thrown forward,
Fig . 6.
fetch ing
the
uppermost
cart-
subsequently
so long that the base of the
cartridge touches upon the ejector. At this the fingers of the
left hand prevent the cartridge
from being thrown out from the
Fig. 10.
receiver {fig. l 0).
ridge from the magazine lfig. 8).
Repeat the movement until the
Adj ust to safety .
magazine is empty.
The weapon is now loaded and
The cartridges are gathered in
put
The right hand on put down in
to
safety.
release safety.
Before
firing
Fig . 9.
backwards
the ammunition girdle {fig. ll).
Press down feeder (Note : The
leasing
weapon
(f~g . 16).
must be adjusted
to
it
from
locking piece
safety, compare fig. 12 and 13}
a nd push cover forward as long
as possible . Press in clasp of
cover with thumb of right hand.
fig . 12.
Release cover slowly in backward direction (fig. 14 A}.
At this ho ld the cover and release it slow ly, al lowing it to
move
backwards . Take
f ig . 15.
away
cov er and recoil spring. Take
Release safety, fire and put to
away locking piece and bolt
safety again.
(fig. 17).
fig. 16.
Dismounting and assembling.
Ho ld
locking
down ,
in
the
piece,
left
upside
hand,
the
foremost part directed forward.
D i s m o u n t i n g: Move cover
Catch bo lt with thumb and forefully to foremost position (fig .
finger of right hand
(fig.
181
14 Bi.
and raise its back part so that
fig . 14A.
Turn safety lever straight backwards and lift back piece out
(fig. 15).
the
locking
shoulders
come
above the grooves in the locking
piece. Move bo lt forward twisting it slight ly and lift it out of
Press down clasp of cover re0
locking piece.
f ig . 17.
Remove magazine !fig. 19).
Assembling: Insert bolt in
lo.cking piece in reversed order
If the
magazine catch spring
should be sa hard, that auxiliary
---
as compared with dismounting
!fig. 23).
tools may be needed, the point
Introduce
of a bullet can be employed.
bolt
Fig. 19.
in
locking
receiver.
piece
At
with
this
the
Fig. 23.
hammer must be pressed down
The magazine is dissossembled
!fig . 24) . il l
by
inserted
pressing
in
the
magazine
bottom catch with the point of
feeder
a bullet or a suitable wooden
down
peg !fig. 20).
in
the
must also
to
let
C over with
fore
the
end
magazine
weapon
be
the
recoil
of
which
bolt
the
pressed
pass).
spring,
is
is
to
the
When necessary remove fir ing
introduced in the locking piece,
pin
is moved
and
firing
pin spring
by
o its foremost posi-
pressing out firing pin peg with
tion so it will hook on to the
a metal punch or other metal
locking piece with the clasp. At
subject !fig . 21).
this see the pin for the recoil
spring
When necessary remove extrac-
Fig . 24.
be
enters
the
connecting
socket !fig. 25).
tor by pressing back extractor
Place back piece in position and
pin with tool lor removing ex-
turn safety lever to the left !fig .
tractor !fig . 22).
26).
Fig . 25.
Release cover by pressing clasp
When firing blank ommuni ion
down and let cover go slowly
a ~pecial mouthpiece for blank
to reor position (fig. 27).
shooting is screwed on instead
Fire and put to safety.
of the muzzle ring. To remove
the mouthpiece the combination
When necessary assemble matool is applied (fig. 30/.
gazine and insert the some (fig.
The combination tool contains
28) .
Fig . 31.
a hollow mill for cleaning the
opening of the gas pipe (fig.
Cleaning.
31) .
Common princip les for cleaning
The wiper for the chamber is
and oi li ng ore to be applied.
applied for cleaning the chamFor
this
dismount
as
obove
ber. For handling the lower hole
described, when necessary.
in the combination tool is used,
Fig . 32.
by introducing the hook of the
Use of certain tools .
wi p er !fig . 32).
When d ue to defective om munition
a
cartridge
accidenta lly
broken
case
is
crosswise
Faulty handling of the weapon.
a ) Never
press
feeder
down ,
app ly the extractor for crocked
when safety lever is turned
cartridge cases by introducing
to the left
it in the magazine like a com-
!fig. 33).
mon cartridge and plunder !fig.
If the cover is then moved
29)
cartridge
backwards, the bolt and the
chamber). The extractor
locking piece are thrown for-
con be adjusted by turning in the
wards so the finger wi ll be
screw more or less in the stud.
jammed (fig. 34) .
from
/see
Removing
Fig. 33.
b) When firing never hold the
The influence on the dispe rsion of the heating· of the ba rrel during
weapon with the fingers of
con tinuous firi ng is thus conta ined in the ob oined figures.
the left hand touching upon
Following res ul s were ob tained:
the locking piece (fig . 35).
The fingers wi ll then be iommed
between
the
Best val ue
receiver
.....
Poorest value
and the movi ng ports . There-
•
•
•
•
•
•
•
•
0
••
.. . . . .......
Average vcl ue
H10o
B10o
4,0
3,0
21,5
13,8
10,5
7,6
H10o+ B1oo
8,3 em
35,6 »
18,1
»
fore ho ld the left hand fu rth er ahead.
Contents.
Outcomes of the weapon.
Pa ge
Principle of desig n
2
At de liveries of the automatic rifle m/42 to the Swedish army the
Cartridge feed . ..
2
following control of delivery is performed, which guarantees, tha t
Ammunition
2
the weapons ore first class:
Bollis ics
3
o) ocu lar inspection of finished ports
Range
3
b)
Sights
4
Rote of fire
4
Di mensions and we ights
4
Accessories
4
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weapons
c) interchange test on ports
d) control of action
e) contro l of sight odiustment
f)
material test control and record of shop control of dimensions
and heat treating is to be presented to the inspector on
demand .
H andling
5
M anner of carrying
5
Safety
5
. . ..
A utomatic safety
At the inspection it has been stated that the automatic rifle m/42 is
distinguished by on extraordinary reliability of functioning and
that the interchangeability of the ports is 100 p.c.
Below ore presented dispersion figures for about 500 series of
10 rounds each. Range 100 m. 10 series were fired immediately one
after another during o total time of about 10 minutes . !T ime interval
between the shots in each series about 4 sec. )
5
Loading ..
6
Removing cartridge from chamber
7
Dismounting and assembling .
8
Cleaning
12
Use of certain tools
12
Faulty handling of the weapon
13
O utcomes of the weapon
14
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