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Originally Posted by 44AMP
125gr bullet at 3,500fps from a 16" barrel?
HOW???
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No doubt using the same technological innovation that brought us SPIW, ACR, XM25, and XM-8.
Did I also mention the threshhold for barrel longevity was no more than a 10% degradation in accuracy after 10,000 rounds?
Putting aside the technological constraints, if they COULD manufacture such a rifle, a lot of our current small arms infantry tactics would have to change dramatically. Not the least of which is a system like this pretty much demands some advanced never before seen optics that overcome traditional human limitations in extended range engagements.
And with a noticeably smaller basic load and heavier ammo, fire discipline will play a much more important role.
Last but not least, room clearing in urban areas is going to be exciting with a round designed to penetrate any currently existing body armor at a distance of 600m. You pretty much have to throw the CQB book out entirely and start from scratch, or reduce your ammo load out even further with a reduced penetration ammo carried alongside your issue ammo.