How powerful would a 20 mm handheld automatic rifle be? It heavily resembles an MG 08. It is gas operated and has 5 rounds per second (as an infantry weapon). - Quora
![Penetration test of a 20mm anti-tank rifle using quarter inch steel plates (X-Post from /r/woahdude) : r/WorldofTanks Penetration test of a 20mm anti-tank rifle using quarter inch steel plates (X-Post from /r/woahdude) : r/WorldofTanks](https://external-preview.redd.it/w-V7ohPXv_7K87nOvvpoJGyNK4dZ7mtlddtnNgsQq0o.jpg?format=pjpg&auto=webp&s=fd7e2863c74b86ca62e832ef7b99e062c6431577)
Penetration test of a 20mm anti-tank rifle using quarter inch steel plates (X-Post from /r/woahdude) : r/WorldofTanks
![Anti-Material Rifles and ammunition .50 cal-20mm range (2009) - General Ammunition Discussion - International Ammunition Association Web Forum Anti-Material Rifles and ammunition .50 cal-20mm range (2009) - General Ammunition Discussion - International Ammunition Association Web Forum](https://global.discourse-cdn.com/business6/uploads/cartridgecollectors/original/3X/9/5/954f02341b8ff1a68b17141d5ef76236f622b054.jpeg)
Anti-Material Rifles and ammunition .50 cal-20mm range (2009) - General Ammunition Discussion - International Ammunition Association Web Forum
![19/1/2020 [1.95.0.49] 20 mm Ho-1/Ho-3 cannon AP-T wrong penetration - Documented Aircraft Reports - War Thunder - Official Forum 19/1/2020 [1.95.0.49] 20 mm Ho-1/Ho-3 cannon AP-T wrong penetration - Documented Aircraft Reports - War Thunder - Official Forum](https://i.imgur.com/z5zPuxX.jpg)