Bumping a slightly old thread with some numbers.

Magteh / CBC chrono'd @ 2390 fps last weekend.
BMC fluted 11.5" barrel w/ BC 1.0 comp.
Temp was ~50 degrees.

I had a 50 yard zero and was able to hit the 300 yard X with a 5 MOA holdover. I need to sell off my M855 and just buy more of this stuff.