7,5 cm Kw K 42 (L/70)

By Christian Ankerstjerne

Production Costs

7,5 cm Stu K 42 (L/70)
Price 12 000 Reichmark
Man-hours 1500
Production time 6 months
Iron 3883.00 kg
Molybdenum 1.40 kg
Chromium 33.70 kg
Tungsten 0.12 kg
Tin 0.01 kg
Copper 0.60 kg
Aluminum 0.06 kg
Lead 0.01 kg
Zinc 1.65 kg
Silver 0.4 g

Technical Information

7,5 cm Kw K 42 (L/70)
Gun
Caliber 75 mm
Barrel length 5.25 m
Barrel length in calibers 70
Range (max) 9850 m
Rate of fire 6 rounds per minute
Barrel life 2000 rounds
Mount
Maximum elevation 20°
Minimum depression -8°

Armor Penetration

Round Shot type Weight (shot) Muzzle velocity Range
100 m 500 m 1000 m 1500 m 2000 m
Pzgr 39/42 ABCBC-HE 6.80 kg 935 m/s 138 mm 124 mm 111 mm 99 mm 89 mm
Pzgr 40/42 APCR 4.75 kg 1120 m/s 194 mm 174 mm 149 mm 127 mm 106 mm

Accuracy

Round Range
500 m 1000 m 1500 m 2000 m 2500 m 3000 m
Pzgr 39/42 Training 100% 100% 100% 92% 73% 55%
Action 100% 97% 72% 49% 29% 18%
Pzgr 40/42 Training 100% 94% 76% 56% - -
Action 100% 56% 32% 20% - -
Spgr 42 Training 100% 100% 90% 66% 42% 28%
Action 100% 97% 44% 24% 13% 13%

Ammunition

7,5 cm Pzgr Patr 39/42 7,5 cm Pzgr Patr 40/42 7,5 cm Sprgr Patr 42
Type
Type APCBC-HE APCR HE
Physical Characteristics
Caliber 75 mm
Weight, shot 6.80 kg 4.75 kg 5.74 kg
Weight, round 14.30 kg 11.55 kg 11.14 kg
Length, shot 278 mm 256 mm -
Muzzle velocity 925 m/s 1120 m/s 700 m/s
Muzzle energy 2 909 125 J 2 979 200 J 1 406 300 J
Explosive Contents
Weight, filler 17 g 0 g 690 g
Weight, propellant 4070 g 3420 g 2420 g

Sources

  1. Zusammenstellung der Explosivstoffgewichte für deutsche Munition (zu H. Dv. 450 Rdnr. 46). Berlin : Heereswaffenamt, 1944. 21 p. Merkblatt 28/1.
  2. Heereswaffenamt. Geschoßringbuch Band I. Berlin : Oberkommando des Heeres, 1939. 111 p. D 460/1+.
  3. JENTZ, Thomas L. & DOYLE, Hilary Louis. Germany's Panther Tank : The Quest for Combat Supremacy. Atglen, PA : Schiffer Military History, 1995. 156 p. ISBN 0-88740-812-5.
  4. Koch. Merkblatt für die Munition der 7,5 cm Kampfwagenkanone 42 und 7,5 cm Sturmkanone 42. Berlin : Heereswaffenamt, Oberkommando des Heeres, 1943. 37 p. H Dv 481/55.
  5. PAWLAS, Karl R. Waffen-Revue W 127 - Datenblätter für Heeres-Waffen, -Fahrzeuge und Gerät. Nurnberg : Publizistisches Archiv für Militär- und Waffenwessen, 1976. 248 p. ISBN 3-88088-213-4.