[Reconifex] heat magazine now properly works and works exactly like how [Saryn]'s Toxic Lash works. Other element mods apply ONCE to the heat dot, Heat mods apply TWICE to the resulting heat DoT, and faction mods apply THRICE to said heat DoT. You will see massive resulting heat dots with only 20 heat procs using the correct mods.

Primed Bane for triple dip on the heat DoT.
[Primed Cryo Rounds] for largest +165% element modifier to the Heat DoT.
[Malignant Force] to combine into Viral with [Primed Cryo Rounds].
[Hellfire] for double dip on the heat DoT.

[Primed Shred] for fire rate and punch through. Swap for Vile Acceleration if you don't have Primed Shred.

Critical Delay and Vital Sense are flex slots for Thermite Rounds/[Wildfire] and [Rifle Elementalist] if you want to focus on a pure DoT build.

Swap factions mods for different factions. Against the murmur consider using Elementalist instead of Bane of Murmur.