• Source: 6.5-284 Norma

The 6.5-284 Norma (6.5x55mmRB Norma) originated as a wildcat cartridge based on the .284 Winchester cartridge necked down to 6.5 mm.




History


The parent case .284 Winchester was created around 1963, but did not see extensive commercial use. The 6.5 caliber allowed for the use of long, aerodynamic bullets. In 1999, Norma submitted it to CIP. It has since been standardized as the 6.5mm-284 Norma.




Use


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. Rich DeSimone's 1,000-yard (914.4 m) record has been broken by Tom Sarver, who shot a 1.403-inch (35.64 mm) group in 2007 using a .300 Hulk wildcat cartridge that is based on the .338 Lapua Magnum cartridge. A 140 gr (9.1 g) bullet in this caliber is typically fired at 3,000 ft/s (914 m/s) to 3,100 ft/s (945 m/s).




See also


List of rebated rim cartridges
List of rifle cartridges
6.5×55mm Swedish
.260 Remington
6.5×47mm Lapua
6.5mm Creedmoor




References






External links


Wildcatting the .284 Winchester Long-range shooters and wildcatters have kept the .284 alive. By M.L. McPherson
Why the 6.5x284 for Long Range Shooting? by Robert Whitley, Precision Shooting Magazine, April 2007, Vol 54
The 6.5mm-284 Norma and 6.5mm Remington Magnum by Chuck Hawks
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