20 × 138 mm wide

20 × 138 mm wide
general information
caliber	20 × 138 mm wide
Sleeve shape	Belt sleeve
Dimensions
Floor ⌀	20 mm
Sleeve length	137.4 mm
Weights
Bullet weight	120 g
Powder weight	300 g
Technical specifications
Speed ​​v 0	900 m / s
Bullet energy E 0	47,000 yrs
Lists on the subject

The 20 × 138 mm B grenade cartridge, also known as Lang Solothurn , was used in conjunction with the corresponding projectiles in some countries as ammunition for a number of different weapon systems such as anti-aircraft cannons , combat vehicle cannons and on-board weapons, primarily until the end of the Second World War . The caliber was 20 mm, the case was 138 mm long and the capital letter B stood for English belted case .

history

Right: three 20 mm shell cartridges

The 20 × 138 mm B grenade cartridge was developed, manufactured and marketed internationally by the Swiss arms factory in Solothurn in 1930 . Some usage examples are listed below.

•  Switzerland :
  • Solothurn ST-5 : Anti-aircraft gun (FlaK)
  • Solothurn S18-1000 / -1100 : heavy anti- tank rifle , "Tankbüchse 40 Solo"; Solothurn S18 / 1100: fully automatic variant
• German Empire
  • 2 cm Flak 30 | 2 cm KwK 30 : FlaK and KwK in different versions
  • 2 cm MG C / 30L : Air Force and Navy cannon
  • 2 cm Flak 38 | 2-cm-KwK 38 : FlaK terrestrial / sea-based and KwK
  • 2 cm mountain flak 38
  • 2 cm anti-aircraft quadruplet 38
•  Finland :
  • Lahti L-39 : anti-tank rifle
  • 20 ITK 40 VKT : FlaK
• Kingdom of Italy Italian Social Republic of Italy :
  • Breda Model 35 : FlaK
  • 2 cm FlaK Scotti : FlaK
•  Poland :
  • Nkm wz.38 FK : üSMG, FlaK and PaK Designation de: super heavy machine gun, model 1938, Karabinów factory | pl: Najcięższy karabin maszynowy, wzór 1938, Fabryka Karabinów

literature

• Melvin M. Johnson Jr .: Rifles and Machine Guns . William Morrow and Company, 1944, p. 385 .
• Terry Gander, Peter Chamberlain: Encyclopedia of German Weapons 1939-1945 . 2nd Edition. Motorbuch, Stuttgart 2006, ISBN 3-613-02481-0 (special edition).

annotation

1. ↑ Since the cases of the fired 20 × 138 mm B cartridges are slim, they had an integrated belt in front of the pull-out groove to prevent them from advancing in the chamber.

Web links

Commons : 20 × 138 mm B  - Collection of images, videos and audio files

• 20x138. In: municion.org. Retrieved June 27, 2018 (Spanish).