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The scout rifle is a class of general-purpose rifles defined and promoted by Jeff Cooper in the early 1980s. These bolt-action carbines are typically chambered for .308 Winchester (or 7.62×51mm), less than 1 meter in length, and less than in weight, with iron and optical sights and fitted with practical slings (such as Ching slings) for shooting and carrying, and capable of hitting man-sized targets out to 450 meters without scopes. Typically they employ forward-mounted low-power long eye relief scopes or sights to afford easy access to the top of the rifle action for rapid reloading. Although the Steyr Scout is the only rifle Jeff Cooper has been personally involved with, Ruger, Savage, and several other gun makers now manufacture scout rifles that roughly match Cooper's specifications. A lifelong student of small arms, and recognized expert in the field, Cooper realized that rifles in the late 20th century differed little from those made one hundred years before, and that advances in metallurgy, optics and plastics could make the rifle a handy, light instrument "that will do a great many things equally well..." "The general-purpose rifle will do equally well for all but specialized hunting, as well as for fighting; thus it must be powerful enough to kill any living target of reasonable size. If you insist upon a definition of 'reasonable size,' let us introduce an arbitrary mass figure of about ."〔''The Art of the Rifle'' by Jeff Cooper, p. 18〕 ==Defining characteristics== Drawing inspiration from several sources, specifically the Austrian Mannlicher–Schönauer of 1903 and the Winchester Model 1894, Cooper defined several distinguishing characteristics of a scout rifle: * An unloaded weight, with accessories, of ; with the maximum acceptable. * An overall length of or less. These two characteristics place scout rifles into the general class of carbines. * A forward-mounted telescopic sight of low magnification, typically 2 to 3 power. This preserves the shooter's peripheral vision, keeps the ejection port open to allow the use of stripper clips to reload the rifle, and eliminates any chance of the scope striking one's brow during recoil. Cooper has stated that a telescopic sight is not mandatory. * Ghost ring auxiliary iron sights: a rear sight consisting of a receiver-mounted large-aperture thin ring, and typically a square post front sight. This allows the rifle to be accurately aimed at short to medium ranges even if the scope becomes damaged. * A "Ching" or "CW" sling. Against common practice, Cooper advocated the use of a sling as a shooting aid. The Ching sling offers the convenience of a carrying strap and the steadiness of a target shooter's sling with the speed of a biathlete's sling. (The CW sling is a simpler version of a Ching sling, consisting of a single strap.) * A standard chambering of .308 Winchester/7.62×51mm NATO or 7mm-08 Remington for locales that forbid civilian ownership of cartridges in chamberings adopted by military forces or for its "slightly better ballistics."〔''To Ride, Shoot Straight, and Speak the Truth'' by Jeff Cooper, p. 139〕 As Cooper wrote, "A true Scout comes in .308 or 7mm-08."〔''Guns & Ammo'', (Thoughts From The Gunners Guru )〕 The .243 Winchester is an alternative for young, small-framed, or recoil-shy people, but needs a 22" barrel. Cooper also commissioned "Lion Scout," chambered for the .350 Remington Magnum cartridge. * Accuracy: Should be capable of shooting into 2 minutes of angle or less (4") at 200 meters/yards (3 shot groups). These features dictated short, thin barrels, synthetic stocks, and bolt actions. Other optional features included a retractable bipod, detachable magazines, a butt magazine, and an accessory rail for lights and other attachments. The addition of some of these features often render the rifle technically not a scout as originally defined, but this has come to be accepted by many as still conforming to the spirit if not the letter of the concept. 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「Scout rifle」の詳細全文を読む スポンサード リンク
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