User blog comment:Kogath/Monster Hunter Frontier G5 Discussion/@comment-2108119-20140627140305/@comment-26066416-20140627192006

There are so many ranks in Frontier.

HR1-30 (Low Rank) -> HR31-99 (Monsters hit as hard as MHFU G rank) -> HR100-499 (Gou, Henshu, Kishu) -> HR500 (start of SR) -> SR of all 3 (LR/HR/GHK) -> Hashu (SR300, Supremacy) -> HR999 and SR999 in one weapon (Shantien urgent) -> G