Talk:Expedition/@comment-24.180.136.44-20140607021452/@comment-24154942-20140607043732

Barrel Expeditions will sometimes have great success when the number of barrels equipped is more than the requirement.

In No. 21's case, it's 3 barrels minimum. I've equipped 5 barrels total (one on each ship) and occassionally gained great success. You're pretty lucky getting it 14 in a row though.