Originally Posted by George
The thought on the RFID is that a technically advanced enemy(instead of cave dwellers) migh find a way to blow our weopans while we are using/carrying them. A .45 ACP caliber is still a short range submachine gun. The Russians, fielders of huge numbers of both battle rifles & sub guns in WWII found that the SKS & AK were a big improvement, over all, in firepower. You could make something with a quick change barrell & same cartridge base, like the 9mm & the 7.63 Mauser/7.62 Tokarev, but you don't send troops out with 2 simular but not interchangable rounds. It's inviting disaster. Might do better just upgrading the M16 series to 6.8 Remington or 6mm/223 cartridge.
I see what you mean about the enemy finding a way to blow up our own weapons... I guess that won't work though. But tracking them is still good, via satellite I assume would be the normal way.
What if the rounds were interchangeable? like create a weapon that can use any round you need, and all you would need is a screwdriver or two, to modify the size of the barrel, the chamber, and the area that the bullet goes from the magazine into the chamber (called the breach maybe? i dunno). Then all you'd need is a magazine for each bullet type that can fit into the gun.