Slayer - Legendary Barrels of Fun Challenge Solo - Vermintide 2

Not as fast as it could have been, but still not bad (even with 3 seconds left in reserve)
I advise you to take as much attack and movement speed as possible, and also be sure to take a decanter for the purple potion.
P.S. I found out about this while watching Cheese stream, and was very impressed by this trick :)