Caliber: 20x110mm Hispano
Operation: manual operated, bolt action
Barrel: 920 mm
Weight: 19.2 kg with scope and bipod
Length: 1330 mm
Feed Mechanism: single shot, manual loading
Maximum effective range: about 1800 meters
The RT-20 was developed in the Croatia in the mid-1990s as a pure anti-materiel and anti-armor rifle. The RT-20 name means "Rucni Top, 20mm", that is "Hand Canon, 20mm". It is one of the most powerful anti-materiel rifles fielded by any army in the world today - the only others design roughly comparable to this monster in the terms of the caliber and effectiveness are the South-African NTW-20 rifle and the Finnish Helenius APH-20. The RT-20 had been successfully deployed during the war in the former Yugoslavia in the second half of the 1990s. It is manufacture by the Croatian company RH-Alan and is officially adopted by Croatian army.