Preliminary results of an Army test to see how the service’s M855A1 5.56mm round performs in Marine Corps weapons show that the enhanced performance round causes reliability and durability problems in the Marine M27 Infantry Automatic Rifle, service officials say.

The Marine Corps in March added the M27 and the M16A4 rifles to the Army’s ongoing testing of M855A1 Enhanced Performance Round at Aberdeen Proving Ground in Maryland after lawmakers questioned why the Army and the Marines use two different types of 5.56mm ammunition.

“One of the reasons we were doing that test was because of congressional language from last year that said ‘you two services need to look at getting to a common round,’ so we heard Congress loud and clear last year,” Col. Michael Manning, program manager for the Marine Corps Infantry Weapon Systems, told Military.com in a Dec. 15 Interview…”

Forrás : http://www.military.com/daily-news/2016/12/20/army-round-triggers-problems-marine-m27-auto-rifle.html?ESRC=marine_161219.nl