I'm hearing ya...M855 ammo shoots very well out of my 1-9" twist Mini-14 too, much better in fact, than any 55FMJ that I've tried. And ditto regarding my Son's 1-8" AR...
Kinda leads me to believe that all of the internet scuttle butt concerning the M855 bullet being inherently inaccurate has a lot more to do with 'theory' than it does with reality. :wink: .
DGW