Hello everyone, i really love shooting my 556 but im not really loving the accuracy im getting from it. Now i dont claim to shoot tight ass groups all the time but i can get them pretty close. I have only had my 556 for about a month now and im lucky if i can get about a 3 inch group at 100 yards if im lucky. Ive been playing around with my ammo and i have only been shooting 55 grain bullets from several different manufacturers. I thought i read on this forum a while back that the 556 likes the heavier bullets. Any one have any thoughts on this? Any help would be appreciated.