With stacked Chamber every shot shoots minimum 3 projectiles, so probability wise you have a 95% chance one of those crits to possibly proc [Hunter Munitions]. Those same 3 shots will apply a status effect 93% of the time. Very consistent procs and high damage. Calculator says Toxin Element is less damage than Radiation but Viral procs are better than Radiation/Cold so who knows. Running radiation is probably a mistake, should ideally run toxic. You don't really [Sacrifice] much going radiation, but radiation cold is probably weaker than viral.

Of course you can swap your Bane depending on faction, if you lack the primed versions the base versions are still higher dps than another element or serration. If you want to build more generally than go Infected Clip for more dps or Hammer Shot/[Malignant Force] for higher status with good dps. [Serration] is always weakest but good if you lack everything else.