We used 7.92mm in our old BESA tank machine guns. But as soon as the Britishicon tasted the 'new' .300" Browning in the warime tanks, the old BESA was sidelined. The first post war tanks used the BESA but thereafter, the Mk3 Centurion reverted to the old favourite and unstoppable Browning M1919's. The old BESA continued on in service on Churchill recovery, bridgelayer and other 'funnies' until 1966 when the last BESA's were scrapped