AUTOMATIC PISTOL
RAUTA- JA PUUTEOLLISUUS OSAKEYHTI6
AUTOMATIC PISTOL
Patent applied for
TIKKAKOSKEN
RAUTA- JA PUUTEOLLISUUS OSAKEYHTI0
(Tikkakoski Iron- and Wood-Industry Ltd.)
Office in Helsinki, E. Makasiinikalu 4. Tel. 31 200
Works at ’JyvaskylS—Tikkakoski
Telegrams: Tikkakoski—Helsinki
SUOMI (FINLAND)
HELSINKI 1931
KI RJAPAI NO-Oy TAITO
Automatic pistol
’’SUOMI”
The automatic pistol is a firearm, which, by means
of the pressure of the powder-gas and the counter-
pressure of the mechanism, is automatically loaded,
fired, and ejects the spent cartridge-cases. With
the automatic pistol one can fire both a single round
and automatic' rapid fire; the pistol can be set at
’’safe”, depending on the position of the switch.
Preparing to shoot.
The handle on the right hand side of the pistol
‘is drawn back as far as it goes; this cocks the
pistol.
Then the magazine is pushed underneath the
pistol so far, that the locking spring of the magazine
locks it.
The shooting can then begin, either one single
shot or automatic firing, depending on the position
of the switch.
In automatic firing the switch lies in its front
position.
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For single shots the switch is in the central
position.
The pistol is at ’’safe” with the switch in its
back position.
A few data on the automatic pistol.
1)	Bore 9 mm. Can also be made with bore
7.65 mm.
2)	Initial velocity 360 m/sec.
3)	Length of pistol 870 mm.
4)	Weight of pistol 4.6 Kilos.
5)	Weight of magazine without cartridges, (for
40 rounds) 0.87 Kilos, with cartridges 1.37 Kilos.
6)	Weight of magazine without cartridges, (for
70 rounds) 1.09 Kilos, with cartridges 1.96 Kilos.
7)	Weight of one 9 mm cartridge 12.5 grammes.
8)	Length of barrel 350 mm.
9)	Rate of firing 700—800 rounds per minute.
10)	Penetration at 300 metres 4” pine plank.
„ 500	„	3” „
Advantages over other automatic
pistols.
1)	Safe functioning.
2)	Precision of aim.
3)	Any possible trouble in shooting is easily
remedied by reason of the simple construction
of the pistol.
) 4 (
4)	Not liable to damage by dirt, rain and snow,
as the movable parts are well protected.
5)	The barrel can be changed easily and rapidly.
6)	The pistol has no exterior movable parts, which
might be disturbing or dangerous in shooting.
7)	One can shoot both single shots and auto-
matically with this pistol, and it is easily secured.
8)	Safe magazine functioning.
9)	The magazine is underneath the pistol, which
is important for precision of aim.
10)	The magazine has a numbered indicator, show-
ing with an exactitude of one cartridge, how
many cartridges are left in the magazine.
11)	Easy and rapid filling (re-loading) of the maga-
zine.
12)	Slight recoil.
The Suomi automatic pistol has been thoroughly
tested by the Ministry of Defence of Finland, and
it has been ascertained that this automatic pistol
functions safer and has greater precision than other
automatic pistols on the market.
Even in comparison with light machine guns
of foreign makes tested by Finland’s Ministry of
Defence, it has been proved that the disturbances
in the functioning of the pistol in question were
essentially less.
Further it must be emphasized that the Suomi
automatic pistol, even at a distance of 500 metres,
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has a surprisingly good precision of aim with good
penetration.
The automatic pistol Suomi is therefore a par-
ticularly suitable firearm in close fighting of every
kind, thanks to its safety in functioning, its effec-
tive firing, and its great precision of aim combined
with its handiness.
Finland’s Ministry of Defence has, in particularly
approving the results of the tests, given a trial order
for about a hundred of these automatic pistols.
The illustrations show pictures of targets at
the official trials held by the Ministry of Defence as
well as the exterior of the pistol.
TIKKAKOSKEN RAUTA- JA PUUTEOLLISUUS OY.
HELSINKI, SUOMI (FINLAND)
) 6 (
Target No. 1. Result of automatic firing in series of 2—5
rounds during one half minute in all. Distance 300 metres
against a 300 metres' international target. Of 105 rounds fired,
84 scored hits.
Target No. 2. Result of automatic firing in series of 2—5
rounds lasting one half minute in all. Distance 100 metres
against a target of the same kind as in No. 1. All 126 rounds
fired scored hits with an average point-figure of 8.1.