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This eliminates the "donut" problem seen by many cases after being reloaded over 20 times. Due to the relatively long neck, it can be reloaded with long target bullets without placing the base of the bullet below the neck. The longest 140gr bullets reach the neck-shoulder junction. Ī semiautomatic sniper rifle with a 20-inch barrel, in 6.5mm Creedmoor, is capable of engaging military targets from point blank range to 1,100 meters. 308 Winchester with non-ideal for long range use 168-grain match bullets has a supersonic range of about 975 yd (892 m). The cartridge stays supersonic and maintains its accuracy to past 1,200 yd (1,097 m), while the. Ħ.5mm Creedmoor can provide sub-half-minute of angle accuracy from factory ammo. 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. 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. 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). The 6.5mm Creedmoor is a medium-power cartridge comparable to the. The SAAMI Maximum Average Pressure (MAP) for this cartridge is 62,000 psi (427.47 MPa) piezo pressure Performance In CIP-regulated areas, 6.5mm Creedmoor chambered arms are proof-tested at 543.80 MPa (78,872 psi) PE piezo pressure. pressure to certify for sale to consumers. regulated countries, every rifle cartridge combo has to be proofed at 125% of this maximum C.I.P. (Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) rulings, 6.5mm Creedmoor can handle up to 435.00 MPa (63,091 psi) P max piezo pressure. The common rifling twist rate for this cartridge is 203 mm (1 in 8 in), 6 grooves, Ø lands = 6.50 mm (0.256 in), Ø grooves = 6.71 mm (0.264 in), land width = 2.29 mm (0.090 in), and the primer type is large rifle or small rifle depending on the cartridge case manufacturer. Īmericans define the shoulder angle at alpha/2 = 30 degrees. The 6.5mm Creedmoor has 3.40 ml (52.5 grains H 2O) cartridge case capacity.Ħ.5mm Creedmoor maximum C.I.P. 300 Winchester Magnum while generating significantly-lower recoil, based on lighter projectile weight.
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įor some loads, the 6.5mm Creedmoor is capable of duplicating the muzzle velocity or trajectory of the. The 6.5mm Creedmoor was designed for target shooting at longer ranges, and as such, couples a sensible case volume (3.40 ml) to bore area (34.66 mm 2/0.3466 cm 2) ratio with ample space for loading relatively-long slender projectiles providing good aerodynamic efficiency and external ballistic performance for the projectile diameter. In general, 6.5 mm (.264") bullets are known for their relatively high sectional density and ballistic coefficients, and see success in rifle competition. 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.
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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. The 6.5mm Creedmoor was designed specifically for long-range target shooting, although it has success in game hunting. The cartridge is a necked-down modification of the. 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. or 6.5 CM or 6.5 CRDMR for short, is a centerfire rifle cartridge introduced by Hornady in 2007. The 6.5mm Creedmoor (6.5×48 mm), designated 6.5 Creedmoor by SAAMI, 6.5 Creedmoor by the C.I.P. Small rifle (Alpha Munitions, Lapua and Starline brass) 260 Remington, 6.5mm Creedmoor, 6.5mm Grendel 264 Winchester Magnum, 6.5×55mm Swedish, 6.5×52mm Carcano. Size comparison of some 6.5mm cartridges, left to right.