Given its large caliber, it is one of the most powerful anti-materiel rifles currently in use by any country and is comparable to the South African Denel NTW-20 and the Indian Vidhwansak.

This venturi tube funnels gasses from the propellant rearwards and over the shooter's shoulder, similar to that of a recoilless rifle.

This method of recoil reduction is seldom used in small arms due to the dangerous and highly visible backblast area it generates, and the RT-20 is no exception.

Such a large amount of energy requires the use of nine lugs on the head of the bolt in an interrupted thread pattern, designed to unlock when turned 60 degrees clockwise.

The large cartridge size allows for a wide variety of ammunition to be used including AP, API, APIT, HE, HEI, HEIT, SAPHEI, APDS, HE-M, as well as the potential to easily develop future unique loadings such as airburst or guided munitions.