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majohnson · February 3, 2010, 10:19 PM

Look into the 6.8 SPC, its the latest AR/M4 cartridge. Looking at carts 500yards it still has 1500 lbs engery from a 16" barrel.

February 3, 2010, 10:19 PM	#21
majohnson Member Join Date: April 6, 2008 Posts: 18	Truck Gun Look into the 6.8 SPC, its the latest AR/M4 cartridge. Looking at carts 500yards it still has 1500 lbs engery from a 16" barrel.