Varget is a great powder for reduced velocity loads, such as the .25-06 Remington with Sierra 70-grain BlitzKing bullets at a slow 3,300 fps.
Settling on one powder to load in an array of varmint hunting cartridges certainly simplifies handloading. I did that decades ago by selecting IMR-4320, which provided great performance in my .22-250, 6mm and .25-06 Remingtons and several big-game cartridges.
When I started handloading for the .22-250 in the 1980s, I experimented with several popular powders for the cartridge. Maximum amounts of W-748 and IMR’s 3031, 4064 and 4320 gave Speer 52-grain bullets a muzzle velocity between 3,500 and 3,600 feet per second. Jim Carmichel, in his book, The Modern Rifle (1975), wrote of the .22-250: “My favorite handload is one of the 52-or 53-grain benchrest-grade bullets made by Hornady, Speer, Sierra, Nosler etc., backed by 38 grains of IMR4320. This goes close to 3800 fps in a 26-inch barrel and will usually squeeze the last dollop of accuracy any rifle has to offer.”
Varget’s relative burn rate is somewhat faster than Ramshot TAC and Alliant Reloder 10x.
この記事は Rifle の Varmint Rifles & Cartridges Spring 2020 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
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この記事は Rifle の Varmint Rifles & Cartridges Spring 2020 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
すでに購読者です? サインイン
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