Ballast Point has plummeted back to earth after its meteoric rise, though, a sales decline that reflects early missteps after the merger and the slowing growth of craft beer in general, according to industry experts and Constellation executives. The San Diego-based brewer of Sculpin IPA faces numerous challenges in its quest to grow as national craft brand, but perhaps none more significant than this: There are almost 6,500 breweries in the U.S. today — at least 2,000 more than when Constellation bought Ballast Point.