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6.5×47mm Lapua (or 6.5×47mm) is a rifle cartridge that was developed specifically for 300–1000 meter competition by ammunition maker Nammo Lapua and the Swiss rifle manufacturer Grünig & Elmiger AG in 2005.〔(6mmbr.com October 2005 News, Features, and Products )〕 ==Features== The cartridge has many special features including:〔(Lapua New Products )〕 * The cartridge chamber dimensions are optimized for target bullets. * High pressure level (435 MPa / 63,090 psi) and optimized powder capacity enables high velocity and flat trajectory. * Reduced barrel wear compared to 6mm Norma BR. * The 6.5×47mm Lapua has a base diameter and overall length similar to the 7.62×51mm, allowing it to accept the same bolt heads and fit into similar actions and magazines. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「6.5×47mm Lapua」の詳細全文を読む スポンサード リンク
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