It did see action in real battles, but not against foreign enemies: during the fractional fighting among Red Guards during the Cultural Revolution, Guards in Sichuan seized the Type 65 guns from the production factory and used the guns in battles against each other.
它确实地在真正的战斗行动当中出现过，但却并非应对国外敌方：在文化大革命当中红卫兵的部分战斗期间，四川红卫兵从生产厂房夺取了65式机炮，并使用该机炮相互交火。