i am still danged new to the ar business, and need some advice on factory ammunition for baseline accuracy/precision. my son built me a compact ar (spikes upper and lower, iron city bcg, bcm charging handle, troy ambi bolt release, daniel defense furniture, ALG QMS trigger, and 16-inch barrel, 1/9, whose manufacturer escapes me now). rig is tight. i finally swapped the burris fastfire III for a scope (bushnell banner 4x42, a scope that has proven tough and correct in adjustments, despite cost) and shot it last week off bags at 100 yards to look at potential. federal economy box 55 gr fmj tends to shoot 2-3 moa in 5 round groups with wacky fliers. winchester white box 62 gr fmj 855 shoots a little less than 2 moa with no fliers in 5 round groups. winchester 62 gr hunting SPs sub 2 moa in three-shot groups. i'll fret about deer ammo later. what else might i try? thanks ...
