The home side hit the lead with a try to Luke Pollock in the fifth minute. But the Hunters responded just four minutes later through Stargroth Amean.
Tries to both teams left the score locked at 12-12 at the break.
The second half was when the Hunters put the points on, starting in the 41st minute when in-form winger Adex Wera crossed over to score.
Tries also went to Bland Abavu in the 45th minute, Stanton Albert (56), Nixon Put (62) and Moses Meninga (78).
Captain and five-eighth, Ase Boas, was near perfect, converting six of the seven tries to set up a comprehensive victory in round 13.