We at FR, have had the M-16 vs. .308 argument till the cows come home. The .223 argument was that the round was lighter, so you could carry more, Smaller, so it costs less, and was fast and accurate. Always the last comment would be, “Well, I know you are but what am I” and “Look what they ended up choosing”. Now, I’m supposed to believe we need a gun that holds 5 rounds and the ammo is made of gold with platinum pinstripes? Nothing wrong with experimenting, but when it comes to war, cheap and plentiful usually wins.
I'm stretching here but...this probably won't be the gold standard of Infantry fielded precision guided weapon systems, it is a ‘bridging’ weapon system. Paradigms should always be shifting to cutting edge strategies, tactics and equipment. To do otherwise is to be caught off guard with the next Blitzkrieg tactic or panther tank. Sometimes ya get bit and the idea doesn't work so bad that ya hafta throw the whole thing away. Sometimes it works enough that you spend money refining it. Rarely is it a smash hit right from introduction...IMHO.