This build is centered around procing a lot of heat and some viral, which will give you a very similar result to the Crit/Viral/Hunter Munition from any other weapon. This built is good if you are looking for something a bit different for the [Exergis]. It preforms better and its more flexible than any other builds for it, IMO.
[Chilling Reload] is here for viral and ease of use. You can substitute it with [Frigid Blast] if you want more status chance, but in my testing this seems enough.
This weapon benefits greatly from [Amalgam Ripkas True Steel]
Enjoy it, have fun