Sweden. Saab 29 Tunnan "A, B, D, E, F" Akan m/47D "Hispano Mk. V" Initially 130-round belt-fed (HE) and 10-round magazines (AP). Later 30-round box magazine (MPHC-T). Pansarbandvagn 302 tracked armoured personnel carrier. The vehicle used a single akan m/47 cannon re-purposed from scrapped Saab 29 and Venom aircraft. Pansarterrängbil 203A wheeled armoured personnel carrier. The 203A reuses old Pansarbandvagn 302 turrets. Switzerland 20 mm Flugzeugmotorkanone Hispano-suiza FM-45 HS and 20 mm Flugzeugflügelkanone Hispano-suiza FF-45 HS. Swiss variant with 780 rpm and 875 m/s velocity. Doflug D.3802 "D.3802A" Doflug D.3803 EKW C-3604 20 mm Kanone 1948/73 "Hispano Mk. V" Schützenpanzer 63/73 American-built M113 APC's equipped with the same Swedish turret as Pansarbandvagn 302 Argentina Hispano Mk. II I.Ae. 24 Calquin Hispano Mk. V I.Ae. 30 Ñancú FMA IAe 33 Pulqui II Specifications HS.404 Type: single-barrel automatic cannon Calibre: 20 mm × 110 (0.79 in) Operation: gas operated, delayed blowback Length without muzzle brake: Length with muzzle brake: Weight without drum magazine: Weight (complete): Rate of fire: 600–700 rpm Muzzle velocity: Recoil force: with muzzle brake Ammunition: Ball, Incendiary, HE (High Explosive) Projectile weight: HE and HEI: , AP-T: HE and HEI rounds explosive filler: Ammunition United States World War II Ammunition was shipped in rectangular 10-shell fiberboard cartons. There were 12 cartons per metal-lined wooden packing crate (120 rounds). 20mm Ball Mk. I Weight (Projectile): Weight (Complete Round): each. Weight (Packing Crate):. Volume (Packing Crate): 1.45 Cubic Feet. 20mm High Explosive - Incendiary Mk. I Fuze: No.253 Mk.IA Direct Action (Percussion) Fuze. Weight (Projectile): Weight (Payload): of high explosive and incendiary fillers. Weight (Complete Round): each. Weight (Packing Crate): . Volume (Packing Crate): 1.45 Cubic Feet. 20mm Armour Piercing - Tracer M75 Weight (Projectile): Weight (Complete Round): each. Weight (Packing Crate): . Volume (Packing Crate): 1.45 Cubic Feet. Post-War The M90 series of shells were ballistically matched to make it easier to use different types without losing accuracy. Ammunition was shipped in 25-round metal canisters. There were 6 metal canisters per wooden crate (150 rounds). 20mm Drill M18A2 Weight (Projectile): ? Weight (Complete Round): ? each. Weight (Packing Crate): ? Volume (Packing Crate): 1.5 Cubic Feet. 20mm HEFI-SAP (High Explosive Fragmentation Incendiary-Semi Armor-Piercing) M18A2 20mm Armour Piercing - Tracer M95 (T9E5) Weight (Projectile): Weight (Complete Round): each. Weight (Packing Crate):. Volume (Packing Crate): 1.5 Cubic Feet. 20mm Incendiary M96 (T18) Weight (Projectile): Weight (Complete Round): each. Weight (Packing Crate):. Volume