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Canon de 25mm SA Mle1934 (Hotchkiss)
Caliber : 25x194R mm
Crew : 1 NCO + 5 men (+ 1 driver)
Weight : 480kg (SA34 carriage)
Length : 3.71m
Width : 1.05m
Height : 1.10m (at the shield)
Protection : the shield is 7mm thick
Barrel length : 1.80m
Rate of fire : 25 rpm against fixed target and 15 rpm against moving target
Traverse : 60°
Elevation : -5° to +15°
Telescopic sight : 4x (L.711 telescopic sight, with a 3450m range drum,
field of view 10.13°, V reticle)
V° : 920 m/s
Practical range :
800m (heavy armored vehicles)
1000m (medium armored vehicles)
1500m (light armoured vehicles and softskins)
Penetration : 40mm/0° at 500m; 32mm/35° at 200m
Accuracy : at 800m H x L = 80 x 80 = 160cm
L.711 Sight
L.???The British manual lists two sights for this gun, I know the first sight
pictured is the L.711 but I do not know the model number of the second
sight, although the description given in the German manual for the sight
used on the 47mm Mle1937 ATG matches closely to the picture for this second
sight.
Ammunitions:
Cartouche de 25mm Mle1934 ā balle perforante (charge forte) (AP) - in
German service: Pzgr 122(f)
Caliber : 25x194R mm
Weight of projectile : 0.320 kg (steel/tungsten core)
Length of projectile : 109 mm
V° = 950 m/s (charge forte = 148g propellant powder more propellant to
offset shorter barrel length)
Penetration : 40mm/0° at 500m; 32mm/35° at 200m
German tests :
The test was carried out 1/8-1941 with a 2,5cm KwK 121(f) by HWA on a 120
kg/mm2 armor plate (source : "Kennblätter fremden geräts heft 8a, Munition
bis 3,6 cm" Released in Berlin 1941).
100 meters = 47mm /0°
500 meters = 40mm /0°
1000 meters = 30mm /0°
100 meters = 35mm /30°
500 meters = 30mm /30°
1000 meters = 20mm /30°
100 meters = 18mm /45°
500 meters = 16mm /45°
1000 meters = 15mm /45°
Cartouche de 25mm Mle1934 ā balle traįeuse perforante (charge forte) (APT) -
in German service: Pzgr 123(f) Probably white tracer, tracer effect up to
2000m.
Cartouche de 25mm Mle1934 ā balle traįeuse perforante (charge forte) (APT) -
in German service: Pzgr 124(f) - Red tracer, tracer effect up to 2000m.
Source:
David Lehmann
British Manual for the 25mm Hotchkiss Anti Tank Gun
German documents from the National Archives.
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