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Thread: Any wildcats bases on the 6.8mm SPC case?

  1. #1
    Member Float Pilot's Avatar
    Join Date
    Oct 2006
    Kachemak Bay Alaska

    Default Any wildcats bases on the 6.8mm SPC case?

    I have been playing around with the 6.8 SPC (270 short) for awhile and can push a 90 grain bullet to 2,900 from a 16 inch barreled AR.

    I can't help but think that since the case is bigger in diameter thab the 5.56 (223) that necking a 6.8SPC case down to 6mm (243) would let you fire 75 to 90 grain bullets at 3100 or 3200fps from a 20 inch barrel. Making it a 243 short.
    Floatplane,Tailwheel and Firearms Instructor- Dragonfly Aero
    Experimental Hand-Loader, NRA Life Member

  2. #2


    My Quest shall culminate in the 6.8 SPC.


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