http://www.guns.com/2012/09/06/new-m855 ... abn-video/•After being issued the round, testing it on ranges and finally taking it into combat, not a single negative review has followed
•Soldiers rave about it—its “stopping power” is amazing say most soldiers
http://www.army.mil/article/48657/Not only is this performance much better than the M855's with its smaller steel penetrator, it is vastly better than the M80 7.62mm round.
And since E. Marquez has in fact used this round in combat, seen the results from this round, dealt with the maintenance issues in the field under combat conditions, all while relying on it to preserve his life and the lives of the troops he trained and led, I for one will be looking to his opinion to inform my own on this issue of that you can be sure.