There is one bright spot in big game rifle sales here this past year and that is the popularity of the fairly new 6.5 Creedmore cartridge. While the 6.5 Mauser and 260 Remington are very similar, they have suffered very slow sales. Suddenly, the Creedmore, which shoots the same bullets, becomes an instant success. Why? Perhaps it is the name. Or just the fact that some genius in a firearms company decided to throat the caliber with a longer throat than what is used by the others. This allows for more case capacity since the bullet itself wasn’t seated deeply taking up some of the total capacity. Simple idea, but it works. There is little doubt the 6.5 Creedmore is a very efficient cartridge and is a more sensible round for deer than many others. Maybe hunters and target shooters have become sensible in their choice of deer rifles.
Source : https://observer-reporter.com/columns/georgeblock/the-hits-and-misses-of-a-hunting-season/article_b03d4b7c-f7d2-11e7-960c-43343a6e0dc8.html