Burst DPS + Heat Primer. Blam.
Swap the fire mode to Buckshot & Apply Conditionals to check the math. Alt-firing is a bit obnoxious, since middle mouse button is a bit cumbersome, but at closer range, this gun is a sidearm shotty.
Can use Bane over [Hornet Strike], but I really don't care enough, especially with new Factions being added without Banes. Can swap to Corrosive + Nourish for even more wild results.
Lethal Momentum is essentially required to make this work, as falloff on this gun's alt-fire burst is pretty atrocious. Secondary Enervate is also an option but not currently in Overframe.