Quote:
Originally Posted by marathonrunner
This may not be as good as a $3,000 rifle and may not be as effective as a .308 round, but my Sport II I only paid $499 and it has worked every bit as good as my Colt LE6940. I am also left to wonder why do I need a 16" .308? The .308 is a rifle cartridge and designed for long distance, not for close quarters. I think with a soft point, the 5.56 for close quarters could be just as effective.
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Given the conditions you describe, then the 5.56 is effective. However, the 223/5.56 is a 550 meter round and the 308/7.62X51 is an 800 meter round. At 500 yards the 223 has a velocity of 1598 FPS and energy of 312 ft/lbs. The 308 at 500 yards has a velocity of 1839 FPS and energy of 1261 ft/lbs.
Yes the 308 AR costs more, weighs more and is less maneuverable but if I can only have one rifle then I will take the LMT308MWS over my DD M4V5. However, if I was stuck with the DD M4V5 I would make do.