Dub, howd those Bergers work out? Shot them yet? I bought a few boxes of them because I couldn't find any SMKs for a tolerable price so I decided to try Bergers, then, naturally I lucked into 500 SMKs at a good price so now I'm flush with distance bullets.
The m855 is notorious for its inaccurate performance in general. The real problem with it and anything made like it is that those steel cores are usually not concentric and throws the balance and spin off causing accuracy issues. M855 is a minute-of-man combat round at best.