I think the sheer amount of 5.56 NATO, 7.62mm NATO, 7.62/5.45mm Kalashnikov, and 7.62mm Nagant cartridges in the world and the companies set up to manufacture them will make their replacement difficult and a long time in coming. Eventually, though, I think we will skip over caseless ammunition and replace them with ETC for rifles and heavier weapons, and retain the cased ammo for pistols. (Don't hold your breath for an ETC rifle, though -- I think those will be something my nephew's grandchildren will have rather than any time soon.)
BTW, my nephew got lucky -- his unit at 1ID went into an extended training/reserve role, and he has yet to see either Iraq or Afghanistan. It doesn't bode well for his future in the Army (the Army favors combat vets for promotions and choice positions), but I consider him lucky.
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War is the absence of reason. But then, life often demands unreasonable responses. - Lucian Soulban, Warhammer 40000 series, Necromunda Book 6, Fleshworks
Entirely too much T2K stuff here: www.pmulcahy.com
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