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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 (Bad rounding hereScript error mm)
Neck diameter .2969 in (Bad rounding hereScript error mm)
Shoulder diameter .459 in (Bad rounding hereScript error mm)
Base diameter .470 in (Bad rounding hereScript error mm)
Rim diameter .4728 in (Bad rounding hereScript error mm)
Rim thickness .0539 in (Bad rounding hereScript error mm)
Case length 1.920 in (Bad rounding hereScript error mm)
Overall length 2.820 in (Bad rounding hereScript error mm)
Case capacity 53 gr H2O (3.445 cm³)
Rifling twist 1-8"
Primer type Large rifle
Ballistic performance
Bullet weight/type Velocity Energy
120 gr (Bad rounding hereScript error g) AMAX3,020 ft/s (Bad rounding hereScript error m/s)2,430 ft·lbf (Bad rounding hereScript error J)
140 gr (Bad rounding hereScript error g) AMAX2,820 ft/s (Bad rounding hereScript error m/s)2,471 ft·lbf (Bad rounding hereScript error 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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