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The 6.5mm Creedmoor (6.5×48mm), [6] designated 6.5 Creedmoor by SAAMI, 6,5 Creedmoor by the C.I.P. [4] is a centerfire rifle cartridge introduced by Hornady in 2007. [7]It was developed by Hornady senior ballistics scientist Dave Emary in partnership with Dennis DeMille, the vice-president of product development at Creedmoor Sports, hence the name.
The 6.5-284 has been used extensively in benchrest competitions and is known as an extremely accurate long range round. Using an improved version of the 6.5-284, Rich DeSimone set a 1,000-yard (914.4 m) world record with a 1.564-inch (39.73 mm) group. [4] Rich DeSimone's 1,000-yard (914.4 m) record has been broken by Tom Sarver, who shot a 1. ...
2,745 ft⋅lbf (3,722 J) The 6.5mm Remington Magnum is a .264 caliber (6.7 mm) belted bottlenecked cartridge introduced in 1966. [2][3] The cartridge is based on a necked down .350 Remington Magnum which on turn is based on a shortened, necked down, blown out .375 H&H Magnum case. [4] The cartridge was one of the first short magnum cartridges.
It retains greater terminal energy at extended ranges than either of these cartridges due to its higher ballistic coefficient (BC). [2] For example, the 123 gr (8.0 g) 6.5 mm Grendel bullet has more kinetic energy and better body armor penetration at 1,000 m (1,100 yd) than the larger and heavier 147 gr (9.5 g) bullet of the M80 7.62mm NATO round.
In 2007, Hornady released the first 6.5mm Creedmoor Cartridge. The 6.5 Creedmoor was a joint development between former Marine Corps competitive shooter David Tubb and Hornady Ballistician David Emary. [11] Hornady Manufactures 6.5 Creedmoor cartridges, bullets and reloading dies.
6.5 Creedmoor with a 1:8 twist, 24 in (61 cm) barrel, weighing 10.6 lb (4.8 kg) .243 Winchester with a 1:7.7 twist, 26 in (66 cm) barrel, weighing 11 lb (5.0 kg) A newer Ruger Precision Rifle "Gen 2" was announced on 6 May 2016 with several enhancements over the original. [ 4 ]
Claimed by Weatherby to be the fastest 6.5mm cartridge available. [4]Designed in a similar fashion as other Weatherby cartridges, it has a large-for-caliber case capacity, resulting in high velocities.
To make the 6.5×68mm an awesome long-range cartridge, rifle barrels with a 200 mm to 230 mm (1 in 7.9 to 9 inch) twist rate are a better choice. Due to the large case capacity in relation to the 6.5 mm (.264 inch) caliber bore size the 6.5×68mm is very harsh on barrels. The 6.5×68mm typically wears out a rifle barrel in 500 to 1000 rounds.