HemiDenny, My Father..God Rest his Soul, was a Marine and fought in WWII. He taught me how to shoot and those shots I was telling about was in the grass outdoors and prone with a folding bipod. I have witnesses, lol. The SR 556 I have is just incredible, but maybe I have a fluke. Sometimes all the manufactures tolerances add up into the consumers favor. ;)
Do it MMG! My SR 556 shoots best with American Eagle (Federal) ammo which can be had for about 300 bucks for a thousand rounds from Cheaper Than Dirt. :D
I do use a Burris XTR 1 x 4 scope, made right here in Greeley Colorado. Not cheap, but necessary for me since I'm left eye dominant.