|There has been debate for some time in the US about the effectiveness of the 5.56X45mm round in combat, now a number of European militaries are having similar debates. The proposed solution seems to be slightly larger diameter projectiles, i.e. 6.5 and 6.8mm to rechamber the current 5.56mm assault rifles, cabines and LSW / SAW.
I can't help but wonder if this is the wrong way to go and that what is really needed is specific CQB weapons for MOUT and close country (MP-7 & shotguns?), and longer range, higher power (7.62x51mm) weapons for open country and supporting fire, while the 5.56mm weapons are retired.