| 翻訳と辞書 |
6mm PPC
The 6mm PPC (Palmisano & Pindel Cartridge), or 6 PPC as it is more often called, is a centerfire rifle cartridge used almost exclusively for benchrest shooting. At distances out to 300 yards, it is one of the most accurate cartridges available. This cartridge's accuracy is produced by a combination of its stout posture, being only long, and aggressive shoulder angle of 30 degrees compared to a 30-06's 17 degrees.
==Background==
The cartridge is a necked-up version of the .22 PPC which is in turn based on a .220 Russian.〔 The standard bullet diameter for 6 mm caliber cartridges is , the same diameter used in the .243 Winchester and 6mm Remington cartridges. To obtain maximum accuracy, bullet weight and form are matched to the rifling twist rate of the barrel. Typically, bullets are used in barrels with twist rates of 1:13 (one twist for every 13" in the barrel), while 1:15 barrels can accommodate lighter accurately. The cartridge developed enough acceptance that rifles chambered for it are available commercially.
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「6mm PPC」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|