ɡˈɪvən ɪts lˈɑːɹdʒ kˈælɪbɚ, ɪɾ ɪz wˈʌn ʌvðə mˈoʊst pˈaʊɚfəl ˈæntaɪmətˈɪɹiəl ɹˈaɪfəlz kˈɜːɹəntli ɪn jˈuːs baɪ ˌɛni kˈʌntɹi ænd ɪz kˈɑːmpɚɹəbəl tə ðə sˈaʊθ ˈæfɹɪkən dˈɛnəl ˌɛntˌiːdˈʌbəljˌuː twˈɛnti ænd ðɪ ˈɪndiən vˈɪdwɐnsˌæk, wɪððə dˈɪfɹəns bˌiːɪŋ ðætðɪ ˌɑːɹtˈiː twˈɛnti ɪz ɹᵻkˈɔɪlləs.
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, with the difference being that the RT-20 is recoilless.