Description
SIG SAUER 6.5mm Creedmoor Ammo
The 6.5mm Creedmoor Ammo (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 introduced by Hornady in 2007. 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 cartridge is a necked-down modification of the .30 Thompson Center.
The 6.5mm Creedmoor was designed specifically for long-range target shooting, although it has been used successfully 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 like the 6.5×47mm Lapua.
Specifications On 6.5mm Creedmoor | |
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Parent case | .30 Thompson Center |
Case type | Rimless, bottleneck |
Bullet diameter | .2644 in (6.72 mm) |
Land diameter | .2559 in (6.50 mm) |
Neck diameter | .2950 in (7.49 mm) |
Shoulder diameter | .4620 in (11.73 mm) |
Base diameter | .4703 in (11.95 mm) |
Rim diameter | .4730 in (12.01 mm) |
Rim thickness | .054 in (1.4 mm) |
Case length | 1.920 in (48.8 mm) |
Overall length | 2.825 in (71.8 mm) |
Case capacity | 52.5 gr H2O (3.40 cm3) |
Rifling twist | 1-8″ (203 mm) |
Primer type | Large rifle, Small rifle (Alpha Munitions, Lapua and Starline brass) |
Maximum pressure (C.I.P.) | 63,091 psi (435.00 MPa) |
Maximum pressure (SAAMI) | 62,000 psi (430 MPa) |
Performance For 6.5 Creedmoor Ammo
The 6.5mm Creedmoor is a medium-power cartridge comparable to the .260 Remington and 6.5×47mm Lapua. Its energy at 300 yards using 129-grain Hornady SST bullets is listed by an independent reviewer as 1,641 foot-pounds force (2,225 J). For the 140-grain bullet at 2,700 feet per second (823 m/s) initial velocity, another reviewer reports an MPBR for a six-inch-high target of 265 yards (242 m), and reports a manufacturer-claim of “almost 1,600 ft⋅lbf (2,169 J)” of retained energy at 300 yards (274 m) using a 24 inches (610 mm) barrel.[ SAAMI test data confirms 6.5 mm Creedmoor, 15 feet (4.6 m) from muzzle, velocity of 2,940 ft/s (896 m/s) for the 129-grain bullet and 2,690 ft/s (820 m/s) for the 140-grain bullet (which compares to .300 Winchester Magnum data of 2,930 ft/s (893 m/s) for a 200-grain bullet and 2,665 ft/s (812 m/s) for a 210-grain bullet). 6.5mm Creedmoor can provide sub-half-minute of angle accuracy from factory ammo.
The cartridge stays supersonic and maintains its accuracy to past 1,200 yd (1,097 m), while the .308 Winchester with 168-grain match bullets has a supersonic range of about 975 yd (892 m).
Ballistic performance | ||||||||||||
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