6.5×47mm Lapua

The 6.5×47mm Lapua (designated as the 6,5 × 47 Lapua by the C.I.P.) is a smokeless powder rimless bottlenecked rifle cartridge that was developed specifically for 300–1,000 m (328–1,094 yd) competition shooting by ammunition maker Nammo Lapua and the Swiss rifle manufacturer Grünig & Elmiger AG in 2005. Other common names for this cartridge include 6.5×47mm.

6.5×47mm Lapua
TypeRifle
Place of originFinland
Switzerland
Production history
DesignerNammo Lapua Oy
Designed2005
ManufacturerNammo Lapua Oy
Produced2005–present
Variants6-6.5×47 Lapua and Long Dasher
Specifications
Case typeRimless, bottleneck
Bullet diameter6.71 mm (0.264 in)
Land diameter6.50 mm (0.256 in)
Neck diameter7.41 mm (0.292 in)
Shoulder diameter11.59 mm (0.456 in)
Base diameter11.95 mm (0.470 in)
Rim diameter12.01 mm (0.473 in)
Rim thickness1.37 mm (0.054 in)
Case length47.00 mm (1.850 in)
Overall length71.00 mm (2.795 in)
Case capacity3.11 cm3 (48.0 gr H2O)
Rifling twist200 mm (1-7.87")
Primer typeLarge rifle for prototypes, small rifle since start of production
Maximum pressure (C.I.P.)435.00 MPa (63,091 psi)
Ballistic performance
Bullet mass/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: 700 mm (27.5 in)
Source(s): Lapua
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.