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The 6.5mm Creedmoor (6.5×48 mm), 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 developed for Creedmoor Sports and introduced by Hornady in 2007. It is a modification of the 6.5 Carcano and the .30 TC, based on the .308 Winchester.The cartridge was designed specifically for long-range target shooting, although it has success in game hunting. Bullet-for-bullet, the 6.5mm Creedmoor achieves a slower muzzle velocity than longer cartridges such as the 6.5-284 Norma or magnum cartridges such as the 6.5mm Remington Magnum. However, due to its overall length of 2.825 inches (71.8 mm), it is capable of chambering in short-action rifles.
It was developed in partnership by Hornady Senior Ballistics Scientist Dave Emary and Dennis DeMille, VP of product development for Creedmoor Sports, hence the name.

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