I understand that very small rifles in 5.56mm such as the G36C, Galil MAR, MTAR-21, M4 Commando and so forth cannot produce the velocity necessary to cause standard military rounds to fragment. Since without fragmentation the 5.56mm round is essentially a deeply-penetrating .22, this would seem to me to be a significant problem. How do the people who use those weapons deal with this? Do they use different loads or bullet weights or bullet designs? Do they just accept the limitations of the weapon and hope for the best?