A riven with at least 30% magazine capacity can replace [Magazine Warp].
With at least 50%, you can also remove [Wildfire].

In this build, you can choose to have [Heavy Caliber] for more damage, hunter munition to be effective on high armor, or [Malignant Force] for viral proc (higher damage than [Heavy Caliber], without accuracy reduction, but need to proc).

As exilus, you can use [Terminal Velocity].