After some rigorous testing in the Simulacrum i found that this is the mathematically correct build to play the Artemis Bow when using the [Concentrated Arrow] augment for [Ivara].

Note that this is after Citrinies Last wish so stuff like [Internal Bleeding] and [Hunter Munitions] currently do not work with the explosions.
Also you could hjust throw in another damage mod of your choice in if you decide not to use [Primed Firestorm].

[Galvanized Aptitude] and Bane Mods do NOT scale the explosions, just the damage of the shot itself. Do not listen to what others might say on that. I've tested it.

You can take a different Element like Magnetic or Radiation if you really want to but against beefy eximus viral is probably your best choice.