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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 ]
.17 PMC/Aguila.17 Hornady Mach 2.17 Hornady Magnum Rimfire.17 Winchester Super Magnum.22 BB Cap.22 CB Cap.22 Short.22 Long.22 Long Rifle.22 Extra Long
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The 6.5mm Creedmoor designated as 6.5 Creedmoor by SAAMI, and as 6,5 Creedmoor by the C.I.P. [ 4 ] is a centerfire rifle cartridge introduced by Hornady in 2007. [ 6 ] It was developed by Hornady senior ballistics scientist Dave Emary in partnership with Dennis DeMille, the vice-president of product development at Creedmoor Sports, hence the name.
The 6.5mm Grendel is an intermediate cartridge jointly designed by British-American armorer Bill Alexander, competitive shooter Arne Brennan (of Houston, Texas) and Lapua ballistician Janne Pohjoispää, as a low-recoil, high-precision rifle cartridge specifically for the AR-15 platform at medium/long range (200–800 yard).
The cartridge is a necked-up version of the .22 PPC which is in turn based on a .220 Russian (5.6×39mm). [5] The standard bullet diameter for 6 mm caliber cartridges is .243 inches (6.2 mm), the same diameter used in the .243 Winchester and 6mm Remington cartridges.
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.
The 6.5×47mm Lapua offers slightly lower muzzle velocities than 6.5 mm/.260 cartridges such as the 6.5 Creedmoor and .260 Remington due to its smaller case volume. [9] In an article by the Precision Rifle Blog a survey of the top 100 shooters in the precision rifle series (PRS) showed that the 6.5 Creedmoor was on average 50 ft/s (15 m/s ...