I know that there are many weapons better suited to close quarters combat than a .556. If however a .556 was all someone had, is there a better loading one could come up with for an in close situ. Are there reliable round or flat nose bullets available for that purpose. Does L.E. have an entry load for the .556? I've even wondered if a Boat Tail loaded backwards would be more effective from 15' than the pointey end. Would it load reliably?