Name: 20 × 128 mm
Availability: InStock

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Southern Europe

Spain

Western Europe

France

Netherlands

Switzerland

<h2>Synonyms</h2>20 mm Oerlikon KAA<h2>Armament</h2>Oerlikon KAA (204GK), KAB (5TG), GAM-B01; Spanish Meroka.<h2>Development</h2>This round was developed by Oerlikon in the 1950s, for various designs of cannon and anti-aircraft guns. The same range of projectiles is also used for the 20 × 139 mm ammunition for the Hispano Suiza HS820 gun.<h2>Description</h2>The case is of lacquered steel, with a percussion primer. Projectile weights vary between 125 and 128 g, but charges are regulated to give a muzzle velocity of 1,050 m/s in an 85 calibre length barrel (KAA) or 1,100 m/s in a 105 calibre barrel (KAB).FRANCE<h2>Manufacturer</h2>Giat IndustriesType: HE-I: Steel shell, filled Hexal; fuzed MR207 impact fuze with self-destruction between 5 - 9seconds; 125 g; MV 1,050 m/s (KAA); MV 1,100 m/s (KAB)HE-I-T: Steel two-section shell, front loaded Hexal, rear loaded red tracer; nose impact fuze MR207giving self-destruction between 5 - 9 seconds; 125 g; MV 1,050 m/s (KAA); MV 1,100 m/s (KAB)AP (HC): Light-alloy body with tungsten carbide penetrator; 110 g; MV 1,150 m/s (KAA); MV 1,200m/s (KAB)AP-T (HC): As for AP (HC) above but with red tracerSAP-HE-I: Pointed shell with ballistic cap; shell filled HE-Incendiary mixture and fuzed MR208 basefuze with short delay and self-destruction between 5 - 9 seconds; 128 g; MV 1,050 m/s (KAA); MV1,100 m/s (KAB)SAP-HE-I-T: As SAP-HE-I with the addition of red tracerTP: HE-I shell body, empty; dummy fuze; 125 g; Mv 1,050 m/s (KAA); MV 1,100 m/s (KAB)TP-T: HE-I-T shell body with front section empty, rear section filled tracer; dummy fuze; 125 g; MV1,050 m/s (KAA); MV 1,100 m/s (KAB)NETHERLANDS<h2>Manufacturer</h2>NWM de Kruithoorn (now closed)Type: Break-up Shot MN13: Plastic shell body containing dust shot. Disintegrates by centrifugalaction outside the muzzle. Used for training, practice in confined areas and gun testing. 125 g; MV1,050 m/sSPAIN<h2>Manufacturer</h2>SANTA BARBARA SAType: Mine HE-I: Steel thin-walled shell, loaded 18 g Hexal; fuzed KZA-199 nose fuze withself-destruction; electric primedSAP-HE-I: Steel pointed shell with alloy ballistic cap, loaded 5.4 g Hexal; fuzed BZ-0144 base fuzewith self-destruction; electric primedTP-T: Steel shell with forward section empty and dummy fuze, rear section loaded red tracer; electricprimedSWITZERLAND<h2>Manufacturer</h2>Oerlikon Contraves Pyrotec AGType: HE-I (NF): A steel-bodied shell filled 10 g Hexal and fitted with a nose impact fuze which alsoprovides self-destruction after 4 - 9 seconds; 125 g; MV 1,050 m/s (KAA); MV 1,100 m/s (KAB)HE-I-T (NF): A steel-bodied shell in two sections, the front section filled with 5.6 g Hexal and the rearsection filled with tracer composition; nose fuze providing self-destruction after 4 - 9 seconds; 125 g;MV 1,050 m/s (KAA); MV 1,100 m/s (KAB)HE-I (BF): An optimised steel-bodied shell to defeat modern air targets. Filled with 6.4 g Hexal and 2.5g incendiary composition; base delay fuze providing self-destruction after 4 - 9 seconds; 128 g; MV1,050 m/s (KAA); MV 1,100 m/s (KAB)AP-I-T: Light-alloy body carrying a tungsten carbide penetrator with incendiary composition, and arear tracer; 128 g; MV 1,050 m/s (KAA); MV 1,100 m/s (KAB). Optimised mix with HE-A (BF)SAP-HE-I: Pointed steel shell with light-alloy ballistic cap, filled 4.7 g Hexal; base delay fuzeproviding self-destruction after 4 - 9 seconds; 125 g; MV 1,050 m/s (KAA); MV 1,100 m/s (KAB)SAP-HE-I-T: As for SAP-HE-I above but with red tracer; 125 g; MV 1,050 m/s (KAA); MV 1,100 m/s(KAB)TP: Steel shell with empty cavity plugged with dummy fuze; 128 g; MV 1,050 m/s (KAA); MV 1,100m/s (KAB)TP-T: Similar to the TP but a two-section shell, the rear section being filled with tracer composition.Weight and velocities as for TP

The case is of lacquered steel, with a percussion primer. This round was developed by Oerlikon in the 1950s, for various designs of cannon and anti-aircraft guns. The same range of projectiles is also used for the 20 × 139 mm ammunition for the Hispano Suiza HS820 gun.

Projectile weights vary between 125 and 128 g, but charges are regulated to give a muzzle velocity of 1,050 m/s in an 85 calibre length barrel (KAA) or 1,100 m/s in a 105 calibre barrel (KAB). Applications include oerlikon KAA (204GK), KAB (5TG), GAM-B01; Spanish Meroka.

20 × 128 mm

20 × 128 mm

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