Full story here ---> Right Here.Rocket fuel for your race gun.
Hornady’s new 6.5 Creedmoor is as pedigreed as it is precise. Developed by Dave Emary, Hornady’s Senior Ballistic Scientist and Dennis DeMille, General Manager of Creedmoor® Sports and two-time NRA National High Power Rifle Champion, this cartridge has more pedigree than any other match cartridge on the market.
Edit:
Here is a comparison.
Neck it down to 20 cal (204 Ruger Magnum)??