Semi-automatic Rifle M42 1g341c

T1

1 '

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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.

»

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 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 ...... . .. .

»

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.

»

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 mo 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 ).

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

»

»

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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