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6mm XC
Type Rifle
Place of origin22x20px United States
Production history
DesignerDavid Tubb
ManufacturerCommercially by Norma
Specifications
Parent case.250 Savage
Case typeRimless, Bottleneck
Bullet diameter6.17 mm (Bad rounding hereScript error in)
Neck diameter6.82 mm (Bad rounding hereScript error in)
Shoulder diameter11.42 mm (Bad rounding hereScript error in)
Base diameter11.84 mm (Bad rounding hereScript error in)
Rim diameter11.86 mm (Bad rounding hereScript error in)
Rim thickness1.22 mm (Bad rounding hereScript error in)
Case length48.1 mm (Bad rounding hereScript error in)
Overall length63.4 mm (Bad rounding hereScript error in)
Case capacity3.24 cm3 (Bad rounding hereScript error gr H2O)
Primer typelarge rifle
Ballistic performance
Bullet weight/type Velocity Energy
100 gr (Script error g) Norma Oryx Bonded SP 2,953 ft/s (Bad rounding hereScript error m/s) 1,937 ft·lbf (Bad rounding hereScript error J)
Source(s): Norma[1]

6mm XC (also known as 6XC) is a rifle cartridge, similar to the 6x47mm Swiss Match, that was developed specifically for NRA High Power match shooting by 11-time NRA High Power National Champion David Tubb. It is touted as being one of the most accurate long-range 6 mm rounds in the world that is designed for repeating rifles.

Originally, the case for this wildcat cartridge had to be formed from .22-250 brass, but it is now commercially available.

PerformanceEdit

The 6XC is a 1000 yard cartridge, comparable to benchrest calibers such as 6x47mm Swiss Match, 6.5x47mm Lapua and 6 mm/22-250; it fits into cartridge class that exceeds the velocities of benchrest calibers such as 6mm BR Remington, 6mm BRX and 6mm Dasher. The 6XC has claimed several wins in NRA High Power National Championships and a number of NRA Long Range championship events (1000 yard events).

Muzzle velocityEdit

  • 7.45 g (115 gr) Hollow Point Boat Tail (HPBT): 3,000 ft/s (910 m/s)

ReferencesEdit

  1. Norma 6XC Oryx data sheet. Retrieved 8 April, 2013.

See alsoEdit

External links Edit


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