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6.5-284 Norma
Регіон
United States
Sweden
Категорія
Ammunition, Missiles and precision weapons
The 6.5-284 Norma is a tapered bottleneck cartridge with brass case and rebated rim. The 6.5-284 Norma was developed as a joint venture between the Swedish firm Norma Precision AB and Black Hills Ammunition of the United States at the behest of the US military, which was seeking a cartridge with a trajectory approximating that of the 0.300 Winchester Magnum. The primary design goals were to reduce the recoil, noise signature and bore erosion associated with the 0.300 Winchester Magnum without significantly
reducing overall ballistic performance. The standard 7.7 g and 9.2 g bullets are coated with molybdenum disulphide to reduce friction and increase accuracy. The 6.5-284 was derived from the 0.284 Winchester sporting cartridge, which was selected in part because it provides a large capacity in a relatively short cartridge case. Except for energy, the ballistics of the 6.5-284 approach those of the 0.300 Winchester Magnum. The 6.5-284 is intended for match shooting and sniper use to a range of 1,000 m and beyond, and is presently undergoing evaluation by US military for both match and sniper use. The 9.2 g (142 gr) Sierra hollow point boat tail bullet remains supersonic to a range of 1,500 m. The 6.5-284 is manufactured for Norma in the United States by Black Hills Ammunition. Applications include suitably chambered rifles.