6.5×47mm Lapua

6.5×47mm Lapua
Type	Rifle
Place of origin	Finland
Production history
Designer	Nammo Lapua Oy
Manufacturer	Nammo Lapua Oy
Produced	2005–present
Specifications
Bullet diameter	6.71 mm (0.264 in)
Neck diameter	7.41 mm (0.292 in)
Shoulder diameter	11.53 mm (0.454 in)
Base diameter	11.95 mm (0.470 in)
Rim diameter	12.01 mm (0.473 in)
Rim thickness	1.37 mm (0.054 in)
Case length	47 mm (1.9 in)
Overall length	69.5 mm (2.74 in)
Primer type	Large rifle for Prototypes, small rifle since start of production
Maximum pressure (C.I.P.)	435 MPa (63,100 psi)
Ballistic performance
Bullet weight/type Velocity Energy 6.7 g (103 gr) Scenar 939 m/s (3,080 ft/s) 3,087 J (2,277 ft·lbf) 8.0 g (123 gr) Scenar 880 m/s (2,900 ft/s) 3,098 J (2,285 ft·lbf) 9.0 g (139 gr) Scenar 820 m/s (2,700 ft/s) 3,028 J (2,233 ft·lbf)
Test barrel length: 27.5 Source(s): Lapua

6.5×47mm Lapua (or 6.5×47mm) is a rifle cartridge that was developed specifically for 300–1000 meter competition by ammunition maker Nammo Lapua and the Swiss rifle manufacturer Grünig & Elmiger AG in 2005.^[1]

Features

The cartridge has many special features including:^[2]

• The cartridge chamber dimensions are optimized for target bullets.
• High pressure level (435 MPa / 63,091 psi) and optimized powder capacity enables high velocity and flat trajectory.
• Reduced barrel wear compared to 6mm Norma BR.
• The 6.5×47mm Lapua has a base diameter and overall length similar to the 7.62×51mm, allowing it to accept the same bolt heads and fit into similar actions and magazines.

Performance

The 6.5×47mm was designed from the beginning by Lapua to optimize accuracy, barrel life, and case capacity in a 6.5mm cartridge for target shooting. The 6.5×47mm travels at slightly lower speeds than 6.5mm/.260 cartridges such as the 6.5mm Creedmoor, or the .260 Remington, because of its smaller case volume;^[3] it has the same maximum chamber pressure as the 6.5 Creedmoor,^[4][5] which is slightly higher than the .260 Remington's maximum rated pressure.

See also

• List of firearms
• List of rifle cartridges
• 6 mm caliber
• .243 Winchester
• 6.5×54mm Mannlicher–Schönauer - a cartridge that saw military service with the Greek Army from 1903-1949, which fires the same diameter and weight 9.0g bullet as the 6.5×47mm Lapua but achieves a lower muzzle velocity.

Notes

1. ↑ 6mmbr.com October 2005 News, Features, and Products
2. ↑ "New Products". Vihtavuori.fi. Retrieved 10 February 2007. 
3. ↑ Smith, Zak. "6.5mm Shootout: .260 Remington vs. 6.5x47 Lapua vs. 6.5 Creedmoor". 
4. ↑ Lawrence, Steve; Mobley, Ed. "6.5×47 Lapua Cartridge Guide". AccurateShooter.com. Retrieved 24 January 2016. 
5. ↑ "6,5 x 47 Lapua" (PDF) (20 May 2014 ed.). Commission internationale permanente pour l'épreuve des armes à feu portatives. 16 May 2006. Retrieved 24 January 2016. 

External links

• 6.5x47 Cartridge Guide, Cartridge Specs, Load Data, Reloading Tips, and More...
• Zak Smith, 6.5mm Shootout: .260 Remington vs. 6.5x47 Lapua vs. 6.5 Creedmoor
• First Born: Darrell's 6.5x47mm Lapua
• Zak Smith, 6.5x47 Lapua Tactical TackDriver (6mmBR.com Gun Of The Week)