6.5mm Creedmoor [SEP] manufacturer
6.5mm Creedmoor
The 6.5mm Creedmoor, designated 6.5 Creedmoor by SAAMI, 6,5 Creedmoor by the C.I.P. or 6.5 CM or 6.5 CRDMR for short, is a centerfire rifle cartridge introduced by Hornady in 2007 as a modification of the 6.5 Carcano and the .30 TC, which was based on the .308 Winchester. It was developed in partnership by Hornady Senior Ballistics Scientist, Dave Emary and Dennis DeMille, the VP of product development for Creedmoor Sports, hence the name. The cartridge was designed specifically for long-range target shooting
30 degrees. The common rifling twist rate for this cartridge is 203 mm (1 in 8 in), 6 grooves, Ø lands = , Ø grooves = , land width = , and the primer type is large rifle or small rifle depending on the cartridge case manufacturer.
According to the official C.I.P. (Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) rulings the 6.5mm Creedmoor can handle up to P piezo pressure. In C.I.P. regulated countries every rifle cartridge combo has to be proofed at 125