M/40 automatic cannon
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| Automatkanon m/40 (Akan m/40) | |
|---|---|
Danish version in the Royal Danish Arsenal Museum | |
| Type | Autocannon |
| Place of origin | Sweden |
| Service history | |
| Used by | Sweden, Denmark |
| Wars | World War II |
| Production history | |
| Designer | Bofors |
| Manufacturer | Bofors |
| Specifications | |
| Mass | 313 kg |
| Cartridge | 20×145R |
| Cartridge weight | 0.29-0.3 kg |
| Caliber | 20 mm |
| Action | Long Recoil |
| Rate of fire | 360 rpm |
| Muzzle velocity | 815-845 m/s |
| Maximum firing range | 5 km |
| Feed system | 25 round magazine |
The 20 mm automatkanon m/40 (akan m/40) is an autocannon with a calibre of 20 mm of Swedish origin. The weapon was intended for both anti-tank and anti-aircraft use.