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Part 1 AT guns

25/1931

Weight 480 kg

Barrel length 72

Shell AP

Caliber 25 x 193.5 R mm

Rate of fire 15 to 20 rounds/min

Muzzle velocity 918 m/s

Effective range 1000 m

25/1935

Specifications

Calibre 25x194R mm

Weight 300kg

Length 3.71m

Width 1.05m

Height (at shield) 1.10m

Shield thickness 7mm

Barrel length 1.80m

Rate of fire 25 rpm on fixed target

15 rpm on moving target

Traverse 60°

Elevation -5° to +15°

L.711 telescopic sight magnification 4x

Telescopic sight FOV 10.13°

Telescopic sight range 3450m

Muzzle velocity 920 m/s

Maximum effective range 1500m

Armour penetration 40mm/0° at 500m

32mm/35° at 200m

Accuracy 80x80cm at 800m

Under developement

57/36

Calibre 57mm

Barrel length 2565mm / 45 cal

Weight in action 950kg

Elevation -5deg to +25deg

Traverse 60deg

projectile weight 2.75kg

Muzzle velocity 790 m/s

Rate of fire 15 rpm

Maximum effective range 1500m

Armour penetration 71mm at 30deg at 300m

25/1931

Weight 480 kg

Barrel length 72

Shell AP

Caliber 25 x 193.5 R mm

Rate of fire 15 to 20 rounds/min

Muzzle velocity 918 m/s

Effective range 1000 m

25/1935

Specifications

Calibre 25x194R mm

Weight 300kg

Length 3.71m

Width 1.05m

Height (at shield) 1.10m

Shield thickness 7mm

Barrel length 1.80m

Rate of fire 25 rpm on fixed target

15 rpm on moving target

Traverse 60°

Elevation -5° to +15°

L.711 telescopic sight magnification 4x

Telescopic sight FOV 10.13°

Telescopic sight range 3450m

Muzzle velocity 920 m/s

Maximum effective range 1500m

Armour penetration 40mm/0° at 500m

32mm/35° at 200m

Accuracy 80x80cm at 800m

Under developement

57/36

Calibre 57mm

Barrel length 2565mm / 45 cal

Weight in action 950kg

Elevation -5deg to +25deg

Traverse 60deg

projectile weight 2.75kg

Muzzle velocity 790 m/s

Rate of fire 15 rpm

Maximum effective range 1500m

Armour penetration 71mm at 30deg at 300m

75/27/1914 (based on the French Canon de 75 modèle 1914 Schneider)

Calibre 75mm L36

Barrel length 2720mm

Weight in action 965kg

Traverse 6°

Elevation -11 / + 18

Muzzle velocity 577m/s

Maximum range HE 13000m

Projectile weight 7.25kg

Shells : HE, Shrapnel, solid AP shot.

Rate of fire 12-15/min

Crew 6

Carriage horse-drawn

75/36/1933 (based on the French 76-mm divisional gun M1933)

Caliber 75 mm

Barrel length bore: 3,680 mm / 48.4 calibers (without muzzle brake)

Weight in action 1,620 kg

Elevation -5deg to 37deg

Traverse 54deg

Rate of fire 15 rounds per minute

MV 690-710m/s

Shell weight 6.3-7.1kg

Maximum range 14,600m

Crew 7

Carriage split trail

105/298/1913 (based on the French 105mm FG Schneider M1913)

A widely used great war field gun. The production model had a standard box tailed carriage, but in the late 1920s split tail Polish carriages became available and have been adopted with pneumatic tires.

Projectile : 15.7kg

Barrel length bore: 2.987 m

MV : 550m/s

Range : 12,000m

Weight : 2.3/2.5tonnes

Elevation : -5 to +37

Traverse: 6deg.

ROF : 2rpm

122/156/1912 (based on the French 122mm field howitzer model 1910/27)

Calibre 121.92mm

Rifling grooves 36

Barrel length 1.560m

Weight in action 1466kg

Weight in the march 2510kg

Elevation -3deg to +44.5deg'

Traverse 5deg

Shell weight 22.93kg

Muzzle velocity 335 m/s

Max range 7681m

Rate of fire 5-6rpm

122/548/1928 (based on the French 122mm M1928)

Caliber 122 mm

Weight combat: 7,250 kg

Barrel length bore: 5,485 mm / 45 calibers

Carriage split trail

Elevation -2deg to 65 deg

Traverse 58 deg

Rate of fire 3-4 rounds per minute

Maximum range 20,400m

## Quoted

Originally posted by thesmilingassassin

Part 1 AT guns

25/72/1931

Weight 480 kg

Barrel length 72

Shell AP

Caliber 25 x 193.5 R mm

Rate of fire 15 to 20 rounds/min

Muzzle velocity 918 m/s

Effective range 1000 m

25/108/1935

Specifications

Calibre 25x194R mm

Weight 300kg

Length 3.71m

Width 1.05m

Height (at shield) 1.10m

Shield thickness 7mm

Barrel length 1.80m

Rate of fire 25 rpm on fixed target

15 rpm on moving target

Traverse 60°

Elevation -5° to +15°

L.711 telescopic sight magnification 4x

Telescopic sight FOV 10.13°

Telescopic sight range 3450m

Muzzle velocity 920 m/s

Maximum effective range 1500m

Armour penetration 40mm/0° at 500m

32mm/35° at 200m

Accuracy 80x80cm at 800m

OK, the first 25mm is the French 25mm AT gun from history, but what's the second one? It's gained a 50% longer barrel, but lost almost 40% of it's weight, seems an unlikely combination.... And even with the gain in barrel length and a new cartridge case, it doesn't seem to have gained much velocity. (Assuming that the number after the first / is the barrel length.)

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