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More on the 6.8 SPC

John discusses the need for a new round. Also, here’s the article he’s talking about:

The 6.8x43mm SPC was conceived by a U.S. Special Operations soldier in a quest to improve the terminal ballistics of the M4 Carbine. The U.S. Army Marksmanship Unit and others assisted the Spec Ops team heading the project. Although the main objective was increased lethality, the new cartridge would go far beyond that in terms of accuracy and performance.

After selecting the .30 Remington as the parent case–a decision that required only slight modification to the M16’s bolt face–the case was shortened, 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 .350, offering optimum lethality and range.

Other neat stuff:

I can tell you that it provides one MOA accuracy out to more than 600 meters. It has a flight path almost identical to that of the .308 Winchester, less chamber pressure than the .223 and fits into the M16 magazine envelope. Tests in 10 percent ballistic gelatin show incapacitation as good or better than the .308.

The round is currently available commercially in limited supply. Once the market on it stabilizes, I may build an AR15 chambered in 6.8.

2 Responses to “More on the 6.8 SPC”

  1. Confederate Yankee Says:

    Now, if Springfield Armory can build a 6.8 SPC version of the M1A Scout, or Ruger offers it in a Mini-14, I just might be interested in this.

    I’m thinking about this as an all-purpose rifle for ranged defense and medium-sized game, and might even consider this in an AK or AR-15 chambering.

    Something to think about…

  2. trainer Says:

    Oh Yeah, a Scout in 6.8 SPC…I’m drooling already. An M1A Scout is on my list this year…maybe I should wait a bit and see what Springfield does.