Depending on how long it takes to disable it... I can see something like this

Pre-Cast Minuet + RS + HS
Straight Shot
IR + BFB
VB + WB
Sidewinder
Empyrean Shot
Disable Minuet + Barrage.
Keep shotting until Barrage Ends
Cast Minuet
Iron Jaw to refresh DoTs
Straight Shot
Heavy Shot spam

That depends on the potencies of 60 skills however, and if Barrage doesn't change/traited. And yeah they will have to be really strong to completely out weight Barrage