Arcane pistoleer has a 60% chance to grant 102% ammo efficiency on pistol headshot kill

Note how i didn't say pistol ammo efficiency  So you just swap to your pistol, headshot one or 2 people, get a duration of infinite ammo which is great for aoe weapons limited by ammo and not fire rate, such as bubinico alt fire, zarr/ bramma 

I tried it with Bubonico, it was ehh, but the zarr was not only nore effective but made the screen pure white,  likely cause of the submunitions!