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  2. 6.5-284 Norma - Wikipedia

    en.wikipedia.org/wiki/6.5-284_Norma

    The 6.5-284 has been used extensively in benchrest competitions and is known as an extremely accurate long range round. Using an improved version of the 6.5-284, Rich DeSimone set a 1,000-yard (914.4 m) world record with a 1.564-inch (39.73 mm) group. [4]

  3. .284 Winchester - Wikipedia

    en.wikipedia.org/wiki/.284_Winchester

    The .284 Winchester has 4.29 ml (66 grains H 2 O) of cartridge case capacity. The case has a rebated rim and a body almost as large in diameter as that of typical belted magnum cases. .284 Winchester maximum C.I.P. cartridge dimensions All sizes in millimeters (mm). [3] Americans would define the shoulder angle at alpha/2 = 35 degrees.

  4. List of AR platform cartridges - Wikipedia

    en.wikipedia.org/wiki/List_of_AR_platform_cartridges

    450 Bushmaster : Uses .284 Winchester cases. Cut the length to 1.700" to form a straight-wall cartridge, from 2.170". The .284 Winchester case is very similar to the .308, however, the .284 case has a body diameter of 0.500", and the .308 case has a body diameter of 0.471". Both share an identical head/rim.

  5. List of rebated-rim cartridges - Wikipedia

    en.wikipedia.org/wiki/List_of_rebated-rim_cartridges

    All members of the following cartridge families: Nosler cartridges; Remington Ultra Magnum; Remington Short Action Ultra Magnum; Weatherby Rebated Precision Magnum (aka Weatherby RPM) Winchester Short Magnum; Winchester Super Short Magnum; 6.5-284 Norma; 6.5×68mm; 6.8 Western.284 Winchester.30 Remington AR; 8×68mm S.350 Legend; 9.3×64mm ...

  6. US rimless rifle cartridge Q104526061: 6,5 × 58 R: ammunition cartridge Germany: Q104526168: 6,5 × 65 R RWS: ammunition cartridge Germany: Q104526167: 6,5 × 65 RWS: ammunition cartridge Germany: Q4641585: 6.45×48mm XPL Swiss: experimental intermediate cartridge Q4641586: 6.5-06 A-Square: US centerfire rifle cartridge Q4031907: 6.5-284 Norma ...

  7. 6 mm caliber - Wikipedia

    en.wikipedia.org/wiki/6_mm_caliber

    This is a list of firearm cartridges which have bullets of a caliber between 6 millimetres (0.236 in) and 6.99 millimetres (0.275 in). Length refers to the cartridge case length; OAL refers to the overall length of the cartridge; Measurements are in millimeters then inches, i.e. mm (in).

  8. .264 Winchester Magnum - Wikipedia

    en.wikipedia.org/wiki/.264_Winchester_Magnum

    The .264 Winchester Magnum is a cartridge which was standardized by SAAMI, which published recommended specifications for the cartridge. SAAMI recommends a six groove barrel with a rate of twist of one revolution in 9 in (230 mm), a bore diameter of .256 in (6.5 mm) and a groove diameter of .264 in (6.7 mm) with each groove having a width of 0. ...

  9. Caliber - Wikipedia

    en.wikipedia.org/wiki/Caliber

    While modern firearms are generally referred to by the name of the cartridge the gun is chambered for, they are still categorized together based on bore diameter. [citation needed] For example, a firearm might be described as a "30 caliber rifle", which could accommodate any of a wide range of cartridges using a roughly 0.30 inches (7.6 mm) projectile; or as a "22 rimfire", referring to any ...