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6.8 Special Purpose Cartridge (SPC)

The 6.8 Special Purpose Cartridge will provide the military a more powerful cartridge than the 5.56mm that is adaptable to the M16/AR15 family of firearms.  It propels a 115 grain bullet approximately 2700 fps and has a retained energy of approximately 650 foot pounds at 500 yards.  Remington Arms designed the 6.8 SPC case from their old .30 Remington. This case required only slight modification to the M16's bolt face, was shortened slightly, given a new shoulder and blown out to maximum capacity for a new high-performance propellant. After testing a variety of bullets in 5.56mm, 6mm, 6.5mm, 7mm and 7.62mm, a bullet of 6.8mm was selected. This .270-caliber, 115-grain projectile has a ballistic coefficient of .360, offering optimum lethality and range. The energy level is about 150% of the current 5.56 NATO round and about 70% of the 7.62 NATO round. The recoil is very mild and M16/AR15 rifles are easily modified to fire the new cartridge.

Good news for hunters. Remington plans to chamber their hunting rifles in this caliber. As yet they have not released news on which rifles would be first, but I would hope it would be chambered in the Model 7 and M700 rifles. It would be a great caliber for the Youth Series of rifles because of the low recoil and plenty of knock down power for deer and similar game.  Since it is a military round, maybe they will offer it  in the M700 LTR tactical rifle also.

6.8 SPC Links
Zack Smith's 6.8 FAQ
Gary Paul Johnson Report
 6.8 SPC Photos

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