In 1982, a review by Army Research, Development, and Acquisition Magazine (as it was then called) of small-arms ammunition development praised the lighter weight and lesser recoil achieved with the smaller round, yet observed that, "One of the inferiorities is, however, its penetration capability." 7.62mm-as the magazine noted through the years. Nevertheless, the controversy continued over which caliber was better-5.56mm vs. The Army adopted the 5.56mm M16 rifle in 1967 it fired the M193, the first 5.56mm round. In 1960, when Army Research and Development Newsmagazine-the forerunner of Army AL&T Magazine -first appeared in print, a major controA,A!versy was raging over the relative merits of the then-standard 7.62mm round and a lighter, higher-velocity 5.56mm alternative. PEO Ammo has life-cycle responsibility for the many different types of ammunition used by the joint warfighter, including general-purpose small-arms ammunition. Today, Program Executive Office Ammunition (PEO Ammo) at Picatinny Arsenal, N.J., manages DOD's conventional ammunition programs for all of the military services. For decades, this intense interest in "guns and ammo" has sparked sharp debate over the best weapons and ammunition on the battlefield, a debate that continues to the present day. Perhaps no subject is closer to the hearts of Soldiers than their weapons and ammunition. Army) VIEW ORIGINAL 4 / 4 Show Caption + Hide Caption – (Photo Credit: U.S. Army) VIEW ORIGINAL 3 / 4 Show Caption + Hide Caption – (Photo Credit: U.S. Francisco Jimenez, an infantryman assigned to Personal Security Detail, 4th Advise and Assist Brigade, 1st Cavalry Division, fires a round from an M4 carbine during marksmanship sustainment training in Mosul, Iraq, Sept. Army) VIEW ORIGINAL 2 / 4 Show Caption + Hide Caption – 1 / 4 Show Caption + Hide Caption – (Photo Credit: U.S.