118235 Damage Apex Bilegut Chain Burst Kill - Horizon Forbidden West Burning Shores
All you need is Chain Burst VS and some Elemental ammo. It can be Fire, Frost, not necessarily Shock! The dmg numbers can reach truly insane numbers, which seems to do with the amount of Stingspawn that self-destruct at the same time as close as possible to the Bilegut.