This build is based on two retaliation added skills, Righteous Fervor and Bursting round.
As well, Gun+shield is also viable and more reliable. However, I am kinda tired of shields.
The core item of this build is Hellborne. Chest armor and pants are normal items for retaliation build. Two lucky bullet rings boost DPS and others just for defense. The single DPS versus 102 dummy ranges from 180k to 580k. (My devotion at lv 15) :rolleyes:
GT link:https://www.grimtools.com/calc/Q2zq9zvN
In the link above, two greens are used to make up for the missing resistance. They are not yet BIS. 
Ikrix scale might be BIS for the farming beast.
75-76 SR screenshot
https://imgur.com/a/DdnLK2q
After defeating Lucas and Valdaran in the above photo, 2 mins left.
