6.5-284 Norma
{{Short description|Swedish rifle cartridge}}
{{Infobox Firearm Cartridge
|name=6.5-284 Norma
|image=6.5-284 Norma.jpg|image_size=120px
|caption=.308 Winchester on the left, 6.5-284 Norma on the right
|origin=Sweden
|type= Rifle
|service=
|used_by=
|wars=
|designer= Norma
|design_date= 1999
|manufacturer=
|production_date=
|number=
|variants=
|is_SI_specs=
|parent=.284 Winchester
|case_type=rebated rim, straight walled bottleneck
|bullet=.264
|neck=.297
|shoulder=.475
|base=.501
|rim_dia=.473
|rim_thick=.054
|case_length=2.170
|length=3.228
|case_capacity=68.33
|rifling=
|max_pressure=
|max_cup=
|primer=
|is_SI_ballistics=
|bwunit=
|bw1=125
|btype1=Partition
|vel1=3000
|en1=2497
|bw2=142
|btype2=Hodgdon
|vel2=2850
|en2=2557
|test_barrel_length=24
|balsrc=
,{{Cite web|url=https://fusiontables.googleusercontent.com/fusiontables/embedviz?viz=CARD&q=select+*+from+1C5o2xk_hWmBsTsTUWwoZ262XZOtOsNloF2QDW28+where+col4+%3D+14605+order+by+col0+asc&tmplt=1&cpr=1|title=FAQ: Google Fusion Tables - Fusion Tables Help}}{{Cite web |url=http://www.hodgdonreloading.com/data/rifle |title=Take Aim at Rifle Reloading Data | Hodgdon Reloading |access-date=2017-03-31 |archive-date=2014-03-01 |archive-url=https://web.archive.org/web/20140301164524/http://www.hodgdonreloading.com/data/rifle |url-status=dead }}{{Cite web|url=https://fusiontables.googleusercontent.com/fusiontables/embedviz?viz=CARD&q=select+*+from+1C5o2xk_hWmBsTsTUWwoZ262XZOtOsNloF2QDW28+where+col4+%3D+14615+order+by+col0+asc&tmplt=1&cpr=1|title=FAQ: Google Fusion Tables - Fusion Tables Help}}}}
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
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 {{convert|1000|yd|1|adj=on}} world record with a {{convert|1.564|in|2|adj=on}} group.[http://www.6mmbr.com/gunweek050.html DeSimone's Dynamic Duo - 1000-Yard Record Rig (Reborn) and Classy New Curly Ash 6.5 Super] Rich DeSimone's {{convert|1000|yd|1|adj=on}} record has been broken by Tom Sarver, who shot a {{convert|1.403|in|2|adj=on}} group in 2007 using a .300 Hulk wildcat cartridge that is based on the .338 Lapua Magnum cartridge.[http://accurateshooter.wordpress.com/2007/07/09/sarver-shoots-1403-group-at-1000-yards/ Sarver Shoots 1.403″ Group at 1000 Yards] A {{convert|140|gr|1|abbr=on}} bullet in this caliber is typically fired at {{convert|3000|ft/s|m/s|0|abbr=on}} to {{convert|3100|ft/s|m/s|0|abbr=on}}.{{Cite web|url=http://www.eabco.com/6.5_mm_cartridges.html|title = Comparison of 6.5mm Cartridges | 6.5 Grendel | 6.5 BRM | 6.5 X 47 Lapua | 6.5 Creedmoor | 260 Rem | 6.5 X 55 Swedish | 6.5-06 | 6.5 - 284 | 264 Win Mag | 26 Nosler}}
See also
References
{{Reflist}}
External links
- [https://web.archive.org/web/20100217044111/http://www.rifleshootermag.com/ammunition/wildcat_0612/ Wildcatting the .284 Winchester] Long-range shooters and wildcatters have kept the .284 alive. By M.L. McPherson
- [https://web.archive.org/web/20110318234140/http://www.precisionshooting.com/psm_2007_04_frame.html Why the 6.5x284 for Long Range Shooting?] by Robert Whitley, Precision Shooting Magazine, April 2007, Vol 54
- [http://www.chuckhawks.com/6-5-284_6-5RemMag.htm The 6.5mm-284 Norma and 6.5mm Remington Magnum] by Chuck Hawks
- [https://web.archive.org/web/20180213193021/http://www.norma-usa.com/index.php/products/ammo/cartridge-of-the-month/163-cartridge-of-the-month-6-5x284 Cartridge of the Month]
{{Rebated rim cartridges}}
{{284Winchester}}
Category:Pistol and rifle cartridges