The Chris-Craft Custom Runabout, known colloquially in our world as the "Barrel Back," is the boat that most folks who have never owned a vintage boat ask about. Why are they nicknamed "Barrel Back"? If you see one in the water, from behind, it’s obvious. The transom is so round above water that it looks like a floating barrel. While Chris-Craft never officially adopted the moniker, it stuck anyway.
This is a companion discussion topic for the original entry at https://www.hagerty.com/articles-videos/articles/2016/09/29/barrel-back