List of autocannon explained

Autocannons are automatic guns with calibers of 20mm to 60mm. There are many types, including chain guns, gast guns, revolver cannons, and rotary cannons. They are being used as military aircraft main guns, naval guns, anti-aircraft weapons, infantry fighting vehicle main guns and are occasionally found on reconnaissance vehicles like the LAV-25.

General autocannons

width=12%	Caliber (mm)	width=15%	Power source	width=38%	Weapon name	width=20%	Country of origin	width=15%	Period
20	Internal			World War I
20	Internal			Interwar
20	Internal			World War II
20	Internal			World War II
20	Internal			World War II
20	Internal			World War II
20	Internal			World War II
20	Internal			World War II
20	Internal			World War II
20	Internal			World War II
20	Internal			World War II
20	Internal			Cold War
20	Internal			World War II
20	Internal			Cold War
20	Internal			World War II
20	Internal			World War II
20	Internal			Modern
20	Internal			World War II
20	Internal			World War II
20	Internal			Cold War
20	Internal	Colt Mk 12 cannon^[1]		Cold War
23	Internal			Cold War
23	Internal			Cold War
23	Internal			Cold War
23	Internal			World War II
25	Internal			World War II
25	Internal			World War II
25	Internal			World War II
25	Internal			World War II
25	External			Cold War
25	Internal			Cold War
28	Internal			World War II
30	Internal			Cold War
30	Internal			Cold War
30	Internal			Cold War
30	Internal			Cold War
30	Internal			World War II
30	Internal			World War II
30	Internal			World War II
30	Internal			World War II
30	Internal			World War II
30	Internal			World War II
30	Internal			Cold War
30	Internal			Cold War
30	External			Cold War
30	External			Cold War
35	Internal			Cold War
35	External			Cold War
37	Internal			World War II
37	Internal			World War II
37	Internal			World War II
37	Internal			World War II
37	Internal			World War II
37	Internal			Cold War
37	Internal			World War II
37	Internal			World War I
40	Internal			World War II
40	Internal			Cold War
40	Internal			World War II
40	Internal			World War I
40	Internal			World War II
40	Internal			Cold War
40	External			Cold War
40	Internal			Modern
45	Internal			World War II
50	Internal			World War II
57	Internal			World War II
57	Internal			Cold War
57	Internal			Cold War
57	Internal			Cold War
57	Internal			Cold War
57	Internal			Cold War
60	Internal			Cold War

Revolver cannons

width=12%	Caliber (mm)	width=15%	Power source	width=38%	Weapon name	width=20%	Country of origin	width=15%	Period
20	Internal			Cold War
20	Internal			World War II
23	Internal			Cold War
27	Internal			Cold War
30	External			Modern
30	Internal			Cold War
30	Internal			Cold War
30	External			Cold War
30	Internal			Cold War
30	Internal			Cold War
35	Internal			Modern
42	External			Cold War

Rotary cannons

width=12%	Caliber (mm)	width=15%	Power source	width=38%	Weapon name	width=20%	Country of origin	width=15%	Period
20	External			Cold War
20	External			Cold War
23	Internal			Cold War
25	External			Cold War
30	External			Cold War
30	External			Cold War
30	Internal			Cold War
37	External			Cold War
37	External			19th century
47	External			19th century

Bibliography

Book: Williams . Anthony G. . Autocannon: A History of Automatic Cannon and Their Ammunition . 2022 . Crowood Press . Marlborough, UK . 978-1-78500-920-4.

Notes and References

Williams, pp. 327–328