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6.5mm Creedmoor
Type Centerfire rifle
Place of origin United States
Production history
Designed 2007
Manufacturer Hornady
Produced 2008
Specifications
Bullet diameter .2645 in (6.72 mm)
Neck diameter .2969 in (7.54 mm)
Shoulder diameter .459 in (11.7 mm)
Base diameter .470 in (11.9 mm)
Rim diameter .4728 in (12.01 mm)
Rim thickness .0539 in (1.37 mm)
Case length 1.920 in (48.8 mm)
Overall length 2.820 in (71.6 mm)
Case capacity 53 gr H2O (3.4 cm3)
Rifling twist 1-8"
Primer type Large rifle
Ballistic performance
Bullet weight/type Velocity Energy
120 gr (8 g) AMAX 3,020 ft/s (920 m/s) 2,430 ft·lbf (3,290 J)
140 gr (9 g) AMAX 2,820 ft/s (860 m/s) 2,471 ft·lbf (3,350 J)
Test barrel length: 28 inch
Source(s): Hornady[1]

The 6.5mm Creedmoor is a centerfire rifle cartridge introduced by Hornady in 2007.[2] When loaded with heavier bullets, cartridges such as the 6.5x55mm and 6.5-284 are capable of greater muzzle velocity due to their longer cases and larger powder capacity. However, due to its shorter overall length, the 6.5mm Creedmoor is more flexible in its ability to be chambered in short-action bolt rifles and AR-10 rifles.

6.5 mm (.264") bullets, in general, are known for their relatively high ballistic coefficients, and have seen success in rifle competition. The 6.5mm Creedmoor is capable of duplicating the trajectory of the .300 Winchester Magnum while generating significantly lower recoil. Also, converting a rifle chambered for the .308 Winchester (or any of its offspring, such as the .243 Winchester, 7mm-08 Remington or .338 Federal) to 6.5mm Creedmoor generally requires little more than a simple barrel change.

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All or a portion of this article consists of text from Wikipedia, and is therefore Creative Commons Licensed under GFDL.
The original article can be found at 6.5mm Creedmoor and the edit history here.
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