An autocannon, automatic cannon, machine cannon or anti-tank machine gun, is a fully automatic gun that is capable of rapid-firing large-calibre armour-piercing, explosive or incendiary shells, as opp
US M242 Bushmaster 25 mm autocannon mounted on an M2 Bradley armoured fighting vehicle
QF 1-pounder Mk II "pom-pom" of 1903
ZU-23-2, a twin barrel 23×152 mm anti-aircraft autocannon from the 1960s still in service with some former members of the Warsaw Pact
German BK 5 50 mm aircraft autocannon displayed in front of the Me 262A jet, a design once tested with it
The QF 1 pounder, universally known as the pom-pom due to the sound of its discharge, was a 37 mm British autocannon, the first of its type in the world. It was used by several countries initially as
Autocannon
…strafing attacks, where the target dwell time is short and weapons are typically operated in brief bursts. The first modern autocannon was the British QF 1-pounder, also known as the "pom-pom". This was essentially an enlarged version of the Maxim gun, which was the first successful fully automatic machine gun…
German gunners wearing gasmasks, with Maxim Flak M14
Australian troopers with a captured 1-pounder in South Africa circa. 1901
Boer 1-pounder with shield