Suddenly everybody wants one…and most manufacturers produce them!
In my 40-year career in this business, I’ve seen a lot of cartridges come and go. The introduction of a new cartridge is usually accompanied by serious marketing efforts, but they don’t always work, and success seems a bit random even though most cartridges work as advertised. I’ve seen a fair number of good cartridges do poorly right out of the starting gate, and I’ve seen cartridges enjoy immense popularity even though they’re similar to good cartridges that are already on the market. The 6.5mm Creedmoor is an anomaly, though—I don’t recall seeing a cartridge that sort of rolls along for a full decade and then skyrockets into popularity.