Are you tired of taking naps waiting for slash procs to do the work for you? Do you like killing things in one shot? Do you [Hate] seeing [Hunter Munitions] on every build for every primary weapon that has ever existed? Then I have the build for you!
Use shotgun mode to land headshots to prime [Galvanized Scope] then swap back to the cannon for massive AOE burst DPS. Sustaining the headshot buffs is a very high maintenance playstyle, but it does allow you to [Reach] peak DPS.
There is an alternative for those who don't like the work required for the combo or those who have a hard time pulling it off. If you don't like this playstyle, you can swap out [Galvanized Scope] and [Bladed Rounds] and still maintain very high DPS. I use that version of the set up when not facing extremely high level enemies, it does less damage but still packs a punch and is a lot less work. Enjoy the new broken mods and weapons!