Ok, so we all have our opinions on which is better, 223, 308, 7.62x39mm; And the people choosing which cartridges become standard issue probably don't give a rip what we think. But we can still think. And I was thinking, what route could we have gone? 308 to 223 is a big step, 30 carbine to 223 is big in different ways. Do you suppose there might have been a good cartridge choice in between? I wonder if we may have been better off with a 7mm or 6.5mm cartridge with a 80-100gr bullet propelled at about 875-925m/s with about the energy of a 7.62x39mm, but faster and smaller. Maybe heavier bullets could have been loaded for snipers, maybe some with steel cored. What do you guys think?