The Russian military's magically modified 57mm self-propelled anti-aircraft gun: the strongest iron broomstick on the battlefield, hitting the plane and down the tank - iNEWS
Projectile, 100mm Frag, F-412
The Russian military's magically modified 57mm self-propelled anti-aircraft gun: the strongest iron broomstick on the battlefield, hitting the plane and down the tank - iNEWS
03 Projectile - [PDF Document]
Ajax discovery: more about the latest family of British combat vehicles. Part of 2
The Russian military's magically modified 57mm self-propelled anti-aircraft gun: the strongest iron broomstick on the battlefield, hitting the plane and down the tank - iNEWS
From 45mm to 57mm - The Russian Ammunition Page
AU-220M BAJKAL - Top tier candidate for Russian 57mm aka Bagel-panzer : r/Warthunder