Keywords: M855 drop during 25-meter zeroing trajectory M16A2 M4.jpg http //www globalsecurity org/military/library/policy/army/fm/3-22-9/c02 htm M855 drop during 25-meter zeroing trajectory of M16A2 and M4 FIELD MANUAL HEADQUARTERS DEPARTMENT OF THE ARMY WASHINGTON DC 24 APRIL 2003 FM 3-22 9 RIFLE MARKSMANSHIP M16A1 M16A2/3 M16A4 and M4 CARBINE CHAPTER 2 CHARACTERISTICS AMMUNITION AND ACCESSORIES 2-11 AMMUNITION TYPES AND CHARACTERISTICS PD-USGov M16 rifle United States Army Field Manual 3-22 9 Zeroing weapons |