fossilman
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- Feb 20, 2004
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Remington and the military have produced a replacement round for the 5.56(223 remington)rifle round.Its the new 6.8x43mm,its built on the old .30Remington case shortened to 43mm and necked down to take .277 diameter(270-caliber)bullets.The good point is its identical in size to the 5.56mm and will function in all Ar-15,s and m-16 rifles via a new upper unit/barrel.At 300 yards the energy is similar to a 100-grain 243 Win. load making it a legitimate 250 yard deer round with the proper bullet...